Today on Unity Motorsports Garage we dive into a basic entry guide to running Dual Quads both low rise and tunnel ram setups. Special Thanks to David Vizard for wealth of knowledge and teaching me through the years!
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@jontrudell75293 жыл бұрын
Our CULT LEADER UTG sent us here!
@UnityMotorSportsGarage3 жыл бұрын
The General of Cult leaders! UTG is Awesome! Andy
@DragBoss351Cleveland3 жыл бұрын
Not sure what that means but if Andy says it is awesome. Got to agree.
@UnityMotorSportsGarage3 жыл бұрын
@@DragBoss351Cleveland uncle Tony is a good guy.. a die-hard Mopar man... But he knows his stuff
@watsisbuttndo8293 жыл бұрын
Dont drink the "mopar or no car" kool aid! Gets hella expensive!
@jontrudell75293 жыл бұрын
@@watsisbuttndo829 UTG does NOT ever say that, In fact his Motto is the opposite
@RichMander13 жыл бұрын
Came here from UTG to give you the partial penny per minute for your work. Thanks for making this.
@UnityMotorSportsGarage3 жыл бұрын
Thanks for coming over! it means alot to me.. Andy
@jamest.50013 жыл бұрын
Nothing cooler than having MR Vizzard drive your vrhicle!! I have seen his books, and Even read a few, im in NW NC and hope to meet him someday!
@davehogye5763 жыл бұрын
Excellent. Vizard's documented guidance even helped me with my Triumph TR cylinder head work. I also built a 5.0 Mustang with a 650 Holley that got over 30 MPG on the highway with a B-W T-5.
@UnityMotorSportsGarage3 жыл бұрын
That is awesome stuff! Please subscribe as you will see more of more good stuff coming up.. David and I will probably be doing a live chat coming up here in the near future. Andy
@montebradshaw1282 жыл бұрын
Nice!!! 💪
@dennisrobinson8008 Жыл бұрын
My 650dp was also tuned well but it was like 26mpg hey with 3200lb.
@transformationclass50548 ай бұрын
I have a dual quad high tunnel ram set-up. I need to learn about how to tune them. I'm happy I found this channel!
@BareRoseGarage3 жыл бұрын
Freekin' Great Video! this should be required viewing for all multi-carb planning & installation. Can't click the Like Button enough times man. Thank You, and I will be recommending this Vid to everyone that asks me about our Tunnel Ram & Multi Carb setups, because I can't say it better brother.
@UnityMotorSportsGarage3 жыл бұрын
Thanks for Watching and kind words... I will have a part 2 coming in a week or so... Covering more in depth stuff regarding jetting and how to go about it.. Andy
@jamesford2942 Жыл бұрын
I just picked up an Edelbrock TR5 tunnel ram for my 318 project. The top is the open plenum tall style. The plan is to put 2 Edelbrock 500 CFM AVS2 carbs on it. I will be running progressive linkage using the rear carb as the primary. I think that I can still keep low end torque and good fuel economy this way.
@4spdragtop Жыл бұрын
Great video. Doing my own 273 with an offy DQ. Using an Eddy 1406 as primary(rear). Homemade progressive linkage and trans kickdown. Unfortunately couldnt use an oem throttle cable and had to go Lokar. Thanks again!
@aaronchristie36032 жыл бұрын
Andy. I surprised myself watching this. I cant believe that the exact intake setup i got a shout out from you. And now with you explaining the science behind it a bit i feel really good about my choice. Thanks man!
@UnityMotorSportsGarage2 жыл бұрын
Aaron, I'm glad you got something out of it! Thanks for Watching Andy
@77chevy4x43 жыл бұрын
Yes sir !Uncle Tony , rich @precision transmission and you . Are the only 3 people. I hear and value your guys information. ! Ty for the videos and knowledge!
@UnityMotorSportsGarage3 жыл бұрын
Thanks, for the kind words! It means alot... I will keep the vids coming! Andy
@davidreed60703 жыл бұрын
David vizard is the man, bar none
@UnityMotorSportsGarage3 жыл бұрын
David Yes he is!
@kathywilke51803 жыл бұрын
Tunnel ram tuning article from years gone by advised; lots of timing in quickly, and a big accelerator pump shot. On a BB jet boat, double pumpers are best. Vacuum secondary carbs can be used if you change the 30cc acc. pumps to 50cc, tune your pump cam, and use a light secondary opening spring. Drag racing about the same.
@UnityMotorSportsGarage3 жыл бұрын
Kathy, you are 100% correct... Thanks for Watching Andy
@DDSpeedShop3 жыл бұрын
Hey man! New to the channel but stoked on the tunnel ram info. I love dual quads and I'm stoked to learn as much as I from your channel!
@UnityMotorSportsGarage3 жыл бұрын
Thanks for coming over... I'm going to be doing a part 2 coming up.. getting more in depth on carb specific things but you can see some vids I have done in my Tunnel Ram playlist on here.. Thanks again! Love your channel too, the two lane blacktop car AWESOME Andy
@DDSpeedShop3 жыл бұрын
@@UnityMotorSportsGarage yeah ill be going back for sure! I mostly fit the "looks cool" category. Gotta work on my dual quad tuning skills haha. Thanks again man.
@bobcuomo51223 жыл бұрын
Another great video......Thanks Andy !
@UnityMotorSportsGarage3 жыл бұрын
Thanks Bob, for the kind words... I plan on keeping them coming! Andy
@reedsilvesan2197 Жыл бұрын
I've studied D.V. for years. Putting together a 385 SBC I expect to make over 600hp on
@libertyjusticeforall67543 жыл бұрын
Thank you for all your expertise!! And info. I look forward to all of your videos!
@UnityMotorSportsGarage3 жыл бұрын
Thank you for the kind words... help me spread the word about the channel and I will help me keep the videos coming! Andy
@libertyjusticeforall67543 жыл бұрын
@@UnityMotorSportsGarage 👍👍👍👍
@libertyjusticeforall67543 жыл бұрын
@@UnityMotorSportsGarage wish I could ask David Vizard some questions. Is there a way to get a hold of him?
@user-zz2kx2to4d Жыл бұрын
great video. Im hooked!
@woodey0283 жыл бұрын
Watched almost all the videos. I'm following your footsteps. Thank ya for sharing.
@UnityMotorSportsGarage3 жыл бұрын
Thank you for watching!! Andy
@timrayburn24613 жыл бұрын
Great video and information. Thanks for posting.
@UnityMotorSportsGarage3 жыл бұрын
Thank you, I will have a followup video in a week or so on more in depth tuning of the carbs! Andy
@DragBoss351Cleveland3 жыл бұрын
Love those Tunnel Rams Andy, can’t wait to see what it’s like on my pro stock builds.
@UnityMotorSportsGarage3 жыл бұрын
Tim, you will LOVE it! Thanks for checking it out... Im going to do a part 2 in a week or so and get more in detail about the tuning aspects. I cant wait to hear and see that Pro/Stock build run... I wish that there was a true vintage Pro/Stock class to run... I would find me a Maverick and do it in a minute! Andy
@DragBoss351Cleveland3 жыл бұрын
@@UnityMotorSportsGarage I have a sub that wants to give me a 79 Fairmount, for a build. Think I am going to take him up on it. That would be a cool pro stock build for sure
@UnityMotorSportsGarage3 жыл бұрын
@@DragBoss351Cleveland oh man.. that would be the perfect car... The unbeatable Fairmont! Sweet...
@DragBoss351Cleveland3 жыл бұрын
@@UnityMotorSportsGarage I know,can you imagine....Stay tuned.
@UnityMotorSportsGarage3 жыл бұрын
@@DragBoss351Cleveland Everyone here needs to check out the Drag Boss channel here on KZbin if you love Ford's... More specific Cleveland's Tim is the MAN.... Just saying...
@kurtzimmerman16373 жыл бұрын
good video Andy. never had a dual quad setup, but I had a 3x2 pontiac on a firebird and it sounded great when you got in it! thanks.
@UnityMotorSportsGarage3 жыл бұрын
There is nothing like that sound of a Tri-Power! You can hear that sweet sound on the chassis dyno videos that I have posted on Casper where the camera is above the carbs! Andy
@ClintsStreetMachines2 жыл бұрын
Your videos are helping me so much with my project. Thanks man.
@UnityMotorSportsGarage2 жыл бұрын
I'm glad you get something from the videos... That is why I do them... Thanks for Watching and the kind words! Andy
@ch-md4mq3 жыл бұрын
Great video. I built a small block Chevy 427 stroker. I ran a fabricated aluminum tunnel ram with twin 500 cfm edelbrock avs2 carbs. With a lityle tuning, It dynos at 548 hp and 547 ft lbs of torque. I used a 1 to 1 linkage, it runs like it's fuel injected. Thanks for the tips.
@UnityMotorSportsGarage3 жыл бұрын
Glad it helped! Thanks for Watching.. Andy
@rickeydriskill10962 жыл бұрын
I have always wanted a dual tunnel ram. Been strongly thinking about putting a set on my mild built 460 in my 77 f150 4x4.
@AryDontSurf3 жыл бұрын
Always enjoy your videos, I'm working on a few different Mustangs at work. It's really cool to finally get my hands into some Ford stuff. I couldn't help but feel like a badass in the 69 fastback lol!
@UnityMotorSportsGarage3 жыл бұрын
Man, the 69 Fastback Mustang is my favorite car hands down! Andy
@montebradshaw1282 жыл бұрын
Big thumbs up! Great info and love your Holley circuit mods video! Seems like those mods might apply to a single carb setup possibly. Thank you and Dave so much for sharing your time and knowledge with us mere mortals...;).
@montebradshaw1282 жыл бұрын
Sry I see this is an old post but new to me. 😀
@UnityMotorSportsGarage2 жыл бұрын
Yes it does apply to many single carb apps... Thanks for watching Andy
@4-gear11 ай бұрын
Great video Andy!
@groomlake51 Жыл бұрын
Love it thanks!!! I love DV but he loves story time now days and im looking for waterfalls of information. Great content
@UnityMotorSportsGarage Жыл бұрын
I'm glad you enjoyed it! Thanks for watching Andy
@johnkufeldt3564 Жыл бұрын
Thanks for covering this, love your content, here and with DV. Sorry about the $5000. I know I'm kinda late to the Unity game but this shit doesn't get old. Cheers from Calgary
@UnityMotorSportsGarage Жыл бұрын
Thanks John! Glad to have you brother! I have to redeem myself after that... Andy
@roostgarage3 жыл бұрын
Another great video Andy. I actually have your mentors book and use it occasionally. I like my Holley carbs and I’m not a big fan of the Edelbrocks. I prefer my double pumpers and my 4 speed😬. Looking forward to the next video 👍
@UnityMotorSportsGarage3 жыл бұрын
Thank you for the kind words! Part 2 will be coming up here in the next week or so! I have ran Edelbrocks with success but I'm like you.. I'm a Holley guy that loves Center Squirters and Double Pumpers Stay tuned! Andy
@gregschultz20293 жыл бұрын
Very Nice Job ,Just Watched Your Video On UTG !!!
@UnityMotorSportsGarage3 жыл бұрын
Thanks Greg!
@smokinjoe69243 жыл бұрын
U.T.G. sent me watching some of your videos and subscribed
@UnityMotorSportsGarage3 жыл бұрын
Thanks for coming over! Hopefully Tony and I will be doing more stuff together here in the near future... The bad part is he lives about 6hrs away.. Andy
@douglabath1337 Жыл бұрын
I have watched a bunch of your stuff and thanks for all your help .... Hopefully you can help me out with an issue I have. I bought a T Bucket that has a 1980 350 chevy ... mild cam, roller rocker, and 4 bolt main, dual 390 cfm holly on a tunnel ram... I know nothing about the lower half. When I got the car, it would run ... but gas would run out the headers . My neighbor knows hollys but not so much about duals on a tunnel ram. Both cars are 4150's ...390 cfm .... before they had 6.5 power valves, 57 jets, and 110 needle .... after rebuild ..... we put in 4.5 power valve, 50 jets, and 97 needle ...... after adjustment ... car will idle just fine, idle in gear, drive in a slow to medium acceleration to any speed .... but if you try and give it a quick throttle .... it will stumble once ( like cut off ) ....almost like it is starving for gas .... or getting too much .... after the single stumble .... it takes off like a bat out of hell ... Hoping you can give me some direction ... Thanks .... Have had a bunch of people telling me to ditch the tunnel ram .... but it looks too cool ..
@UnityMotorSportsGarage Жыл бұрын
You need to up the accelerator pump squirter.. what you are feeling is a massive lean spot.. if by doing this, and it helps but doesn't solve the issue altogether you will need to replace the 30cc accelerator pumps out for 50cc pumps.. Hope this helps! Andy
@artjones24983 жыл бұрын
thanks andy....ive been watching some of davids videos....and i have a few of his books....
@UnityMotorSportsGarage3 жыл бұрын
Art, I've been working with David over 15 years now.. He is a great friend... Thanks for Watching Andy
@johndraper90652 жыл бұрын
Thanks for the info, I think I'm gonna need it...
@UnityMotorSportsGarage2 жыл бұрын
Glad you got something from it! Thanks for Watching Andy
@adamformanack318 Жыл бұрын
If I could go back an do it again,I would build a sbc410 with tunnel ram an a M22 rock crusher 4spd in my square body short bed chevy truck...✌🏻💯😎
@haydenspence69522 жыл бұрын
Great advice buddy thank you
@UnityMotorSportsGarage2 жыл бұрын
Thanks for Watching Hayden! Andy
@braddenning16176 ай бұрын
running two 450s on a clifford 2x4. pulled 383 HP 418.7 Tq ,60 over 292 inline 6 4 speed wide M21,430 Dana just best of best scheider cam solid ,Grind Number: 280-88F Intake Duration (gross): 280 Exhaust Duration (gross): 288 Intake Duration (.050”): 240 Exhaust Duration (.050”): 246 Intake Valve Lift*: .507" Exhaust Valve Lift*: .525" Lobe Separation: 108 Intake Valve Lash: .016" Exhaust Valve Lash: .016" RPM Range: 3200-7000 *Based on 1.75 Rocker Arm Ratio 194/174/ valves 600 springs. in went into this no budget,im 64 doing this all mine life , wanted to do something different. I taped the heater lines to go through the intake to heat it up ,First pull was with a MAN-A-FRE 3 X2 DIRECT INJECTION .ALL 3 CARBS INDEPENDENT, 1 CARB FEED 2 CYLINDERS, NO PLENUM AND ALL HAVE IDLE CIRCUITS,ORANGE THROTTLE CAM JETS ARE LOW 60S 5 LBS fuel pressure,one of the 2 bbls cracked at the base on the dyno, good thing I had the complete 2X4 set up.I have bolted on dual quads on SBC,BBC, AND A USED 1050 DOMINATOR ON A STOCK LS6 . tunnel rams AND DUAL 4s on mild small blocks and many different intakes , no issues since the 70s .I Never had issues every car was immediate response and fast, 11.66 3960 LBS ,tHE BLOCK WAS TOTALLY DONE, 60 OVER ,100th off the deck, 100th off the head Im mixing sunoco 110 blue with 94 , sunuso says they are compatible and you should have around 103.5 octane more than enough after 48 years at it , to much octane wont make you faster , GM Say 103 for a 69 ZL1 so 103 should be fine ,but the car feels lazy and loads up it was beyer with the orage cams than the white .jetting was stock but richer or leaner hurt it .The motor feels strong and you can feel the potential and it will turn over 6500 !!!!! EASY But loads up and feels like its drowning IDK????ALSO DRILLED OUT THE REAR PLATE TAPPED IT FOR A JET MAYBE 60-62 I THINK
@mcwbadass3 жыл бұрын
Vizard's the man!!
@ScottKenny19783 жыл бұрын
Got a question that kinda splits this video with the Glyptal video. You talked about how important it was to keep heat out of the intake. Have you thought about painting the bottom of the intake with Glyptal, for a little more insulation?
@haroldhprittjr70072 жыл бұрын
I use to run a single 700 dual line double pumper street dom intake 305 58cc head 350 small block stock piston rod an crank comp cam extream energy 1600-5800 rpm band cam advanced 6 degrees in a 80 k10 with 35-12.50 340 gear 4 speed and tuned the 700 Holley myself put the and the effort like you said I know I was around 22 mpg and higher as I kept jetting and power valves acc spay jets and cam and what time they gave the most amont offfuel and had no hesatation it ran on 92 the best I tried higher and lower no better I jetted till the plugs were powder gray then went back up two sizes then they were a dark gray but no black and no black smoke out the pipes ! Been fooling with GM since I was about 8 years old I know hard to believe but my dad and when he was at work my mom would come get me at the mec garage at the end of the road were we lived he worked for GM but had a little retirement thing like we know you just can’t stop or quit right we’ll he taught me carb and always didn’t like most any of them but I learned that most Quadra jets pump way to much fuel in the motor at the wrong time so black sky out the pipes there is your gas mileage he would say wasting fuel is the number one thing on bad gas milage I found myself with some time and collecting all kinda hollys playing with them all kinda set ups I always wanted just a little big for what I was doing I could always say holly is the closest thing to fuel injection you can get ! There’s nothing in a carb more tunable that has a way or you can change something and make it better ! Hey hollys a good girl you just have to know what she wants and make her happy and at the end of the track she’ll make you happy ! Great vids man I like it the great thing is I’m learning some things I didn’t know !
@ShotgunDexter3 ай бұрын
Great info. What is your take on blocking off power valve, and going up on jet size?
@generalsixty21332 жыл бұрын
On an old school Jet Boat with 350-500 CI , the tunnel ram is a go-to item. Jet boats are typically in the 3000-5500 RPM range. I thought most cast tunnel rams give up power down low and gain up top above 6500. I guess a huge stroker motor would not matter but should the smaller engines stick with a dual plane intake?
@UnityMotorSportsGarage2 жыл бұрын
General, the cast tunnel rams to me fall between the dual plane and single plane designs. You have 8 equal length long runners which really boost mid range torque production. The tunnel rams carry the top end out futher due to a complete clear line of sight to the back of the valve... To me its the perfect mix but you have to be willing to have a whole in the hood most of the time! Thanks for Watching Andy
@brianb57792 жыл бұрын
Trying to find your video on making that carb synchronization tool. Need your guidance, thanks man. Love your vids btw
@UnityMotorSportsGarage2 жыл бұрын
Thanks Brian! Here you go...kzbin.info/www/bejne/iYPai4ONrahmick
@brianb57792 жыл бұрын
@@UnityMotorSportsGarage Thanks brother
@carerswantcompetencefb88792 жыл бұрын
I have a 1963 mark 3 Zephyr, 302 Ford, Turbo Thrust Offenhauser tunnel ram, dual 600 vacuum secondary Holley's and bug catcher. It was running kind of ok, but then won't even start. Fuel is getting to the float bowls but nothing squirting into the pots.
@davidandrew26103 жыл бұрын
Hi Andy , another great video . A quick question brother - What different carbs , sizes , vac / mech and brands have you tryed on casper over the years , and how are you getting on with mixed up boss ? Cheers and Have a great day Andy .
@UnityMotorSportsGarage3 жыл бұрын
David, I will get into in the next video that will be coming up next week... needless to say I have tried many different things over the years... Some worked and Many didn't! LOL Thanks for watching and I will keep them coming.. Andy
@davidreed60703 жыл бұрын
I have always ran two fours on a ram ,street and strip. Nothing makes power like a ram with annular boosters.
@UnityMotorSportsGarage3 жыл бұрын
I fully agree...for those who have never had a tuned tunnel ram setup... they dont know what they are missing! Andy
@chrissmith7669 Жыл бұрын
I’d love an old school crosstalk on a small block Chevy but everyone seems to think it’s way to much carburetor for a daily driver
@NightWrencher3 жыл бұрын
I'll be tackling a dual quad set up on a 440 tow rig so that will be fun
@UnityMotorSportsGarage3 жыл бұрын
It will definitely haul the mail! Thanks for Watching! Andy
@ThePaulv123 жыл бұрын
Sorry for the long winded post but I have some findings you may be interested in. I am a qualified mechanic so tend to notice things that I've screwed up. I also like towing with dual quads. I had a dual quad 440 that I towed with a bit. I towed a tandem trailer with a car on it or a tandem trailer with a two seat fiberglass glider in it. Be a bit careful with compression. I towed many many miles of country driving with this car. I found if comp is anywhere over about 9:1 if you pull the motor down in rpm - like going up a hill and the revs are between say 2000rpm and 2500 but the motor still responsive in that gear and you hit the gas to compensate for a hill and the secondaries open (I had edelbrock AFBs) my motor would start knocking bad. I quickly realized this is why gas truck engines have low comp. Even those Dodge V10s in trucks have low comp. It all becomes apparent. Compression in gas engines and towing heavy loads isn't a good combo. It is likely that my cam LSA was too tight for towing exacerbating the situation by building cylinder pressure adding to the detonation. It had a Mopar Purple Stripe hydraulic cam of fairly moderate specs but it did have a lumpy idle - it was no good. A low comp gas engine with a towing cam and 2x AVS carbs with 1:1 linkage on the primaries (so no progressive) and careful jetting and accelerator pump tuning could be ideal in say a 440 with a 500" stroker crank in it and about 8:1 comp with aluminum heads to heat soak the chambers a bit. Not too much timing either - can always add more if you need it LOL. If new build use single layer steel shim head gasket (~.018") at say 9:1 comp and if it rattles use a thick head gasket (+.040") to lower the comp. Plan the engine build around this as a tuning aid if you're going the new build route. Engine builder can sort that part of it all out if you relay the idea. My current dual quad tow vehicle. I now have a new OEM roller block 350 Chevy in a Toyota FJ40 4x4 that I use for towing stuff and it has an Offy cross ram with dual quad TBIs and it still rattles even with a towing cam - but I have an out - I can lower the comp via the head gasket method. It is brand new build and the comp is currently 9.2:1 but I can lower it into the 8.5 - 8.7:1 range. I got my machine shop to sort it all out by telling him what I wanted to do and if it rattled and how I proposed to lower it (all based on my 440 experience). It was all worked out in advance by my machinist and he milled pistons and heads to get it all to 9.2:1 based on the thin steel shim gasket. My new 350 doesn't rattle anything like my 440 did but it still does rattle a bit. The 440 was terrible esp on hot days, but my Toyota/dual quad Offy/350 is still too untested to pull it to pieces yet. I might be able to tune it out with plug heat ranges and a dizzy recurve. I even fitted an expensive Milodon single idler gear drive to my dual quad roller cam 350 tow truck so I could very easily play with cam timing. No it doesn't whine - it is totally silent gear drive when installed as per the instructions. If you're using a secondhand 440 motorhome engine then that would be ideal esp if it has the tapered plug heads. Dual quad on that could work really well as a tow engine. Whatever you do, don't up the damn comp rofl...
@trentwallis Жыл бұрын
Hi Andy do you think a fella could manage to get similar low down throttle response with a ram as a dual plane single or no chance? Cheers from Australia love the vids
@UnityMotorSportsGarage Жыл бұрын
I do, it really depends on the whole setup though Andy
@davenkaren2572 Жыл бұрын
Question…. When you mount dual 4150’s side saddle on a Weiand TR (with spacers on top/ under each carb for linkage clearance), and my jets are 74 primary/ 84 secondary, and 4.5 power valves- will one bank of the engine tend to get a richer mixture vs the opposite bank due to the difference in jetting from primary to secondary on both carbs? “One barrel to one cylinder” statement made me wonder? The jets and power valves are from the factory the way they shipped the Brawlers to me….. have no idea of even where to go jet and power valve wise, on this 496 bbc stroker, big cam, 10.5:1- in a jet boat…… just getting started on learning what to do from here…… Thank you in advance!!!!!!
@davidmineer70713 жыл бұрын
I built a 545 stroker with a tunnel ram. 11:1 compression. Im still trying to determine carb size. Any suggestions on carb size? The truck is street/strip. Running 373 gear with 4000 stall.Thanks!
@UnityMotorSportsGarage3 жыл бұрын
For that combo, a pair of 850's or 950's would be my starting point... That sounds like a fun combo... What heads and cam are you running? Andy
@JacksoNR26Ай бұрын
So for a chevy 350 tunnel ram build for a 83 z28 what carb size and cam size should I run on the streets
@mikewilliams-mj9rd Жыл бұрын
Every thing that you said does it also apply to a car running a blower set up like 671 GMC.....Thanks
@Shelby-qk9st Жыл бұрын
Can you recommend aftermarket metering blocks for holley 600s
@Hemiken13 жыл бұрын
Hi Andy, just watched part 2 over on utg and are you able to draw on paper each step of modification to the 660 center squirts please, as in what hole to drill with drill size and what size tap and grub screw and what size hole in the grub screws. I have a 440 stroked to 472 that i will run either a M1 tunnel ram or Edelbrock STR crossram with 660's, working on stealth heads at the moment so have not picked a cam yet. Thanks mate. Australia.
@UnityMotorSportsGarage3 жыл бұрын
Hemiken, send me a email at tunnelram393w@gmail.com and I will work on that for you... It will at least give you a starting point..
@Hemiken13 жыл бұрын
Hi Andy, i sent you an e-mail at your request to read when you have time, thanks in advance.
@UnityMotorSportsGarage3 жыл бұрын
@@Hemiken1 I will try to work on it this weekend...
@robertwoodward3885 ай бұрын
When you buy Aluminum heads I want to get the best hp out of the heads do you still have to do the bowl and blending and porting I'm ether going to build a fe or 460 to go in my 68 Mercury parklane
@frank-df1to3 жыл бұрын
what dual carb will be the best?
@UnityMotorSportsGarage3 жыл бұрын
I've always been partial to Holley Carbs but other brands can be made to do well also! I really like the new Edelbrock AVS2 carbs... Andy
@frank-df1to2 жыл бұрын
@@UnityMotorSportsGarage i goes with 2 avs2 500 cfm for my 350 thanks a lot!
@UnityMotorSportsGarage2 жыл бұрын
Frank I think you will be happy...
@Mr07obrien9 ай бұрын
I have a 385ci sbc what would be better for street setup I have a Victor Jr but thinking of a tunnel ram setup and what size carbies cheers.
@GearheadExplorer852 жыл бұрын
I'm going to preface this by saying that I am new to dual quads. If my information is wrong, please correct me. A couple of questions: 1) When you talk about linkages, you mention that a progressive linkage on a intake with a common plenum is a bad idea because only half of the engine will get proper air/fuel. Wouldn't the same problem happen with a dual plane as well? Or do both sets of primaries open at the same time? 2) Is there a book/video that focuses more on setting up and tuning Edelbrock/Carter dual quad setups? Thanks! -James
@UnityMotorSportsGarage2 жыл бұрын
There are a few differences.. the plenum volume is so much smaller on a low rise dual plane intake dual quad intake and being a dual plane each side of the carb feeds four cylinders... You can run a 1:1 on a low rise setup but you would get better low speed driveability with a progressive style linkage... Because most of the time at small throttle opening it would act almost like a single four barrel dual plane... I hope this helps answer your question.. Thanks for Watching Andy
@StephenGiovi2 жыл бұрын
I have two 700 ish CFM Rochester carbs. With this application be a practical for a modified SBC?
@gandarvis3 жыл бұрын
Hi Andy, great video brother. I have a firebird 75 with a 455 engine and i planning to install a dual quad to it, note that the engine is stock, can i just install it with the carbs without modify the engine for that?? Sorry for my question im just a beginner.. thanks
@UnityMotorSportsGarage3 жыл бұрын
As long as the 455 is in good shape I would do the swap.. if you have any questions down the road just email me at tunnelram393w@gmail.com Andy
@hieronymus..bosch85323 жыл бұрын
Might have asked this here already but i have a buddy with a tunnel ram with 2 vacuum secondary carbs with mechanical linkage & vacuum pods removed & no secondary pump shot . The car runs fine & i don't see how it doesn't have a lean spot or even a bog ?
@UnityMotorSportsGarage3 жыл бұрын
I would guess that either the carbs are really small and or the car is very light and it could be just passing through the bog so fast you really cant feel it... All I can say is that I have never been that lucky... I have tried it and FAILED! LOL Andy
@richardw09292 жыл бұрын
Hello having a mystery issue with my tunnel ram is there any way you can be contacted for some advise?
@UnityMotorSportsGarage2 жыл бұрын
Yeah just email me at tunnelram393w@gmail.com Andy
@curlracing2763 жыл бұрын
What is your thoughts on a dual carb blow through twin turbo build?
@UnityMotorSportsGarage3 жыл бұрын
I have been thinking about this for sometime!! I really believe it will work great... But I'm sure there would be a learning curve with it... Andy
@jimmyford2713 жыл бұрын
Very good video Andy. Perhaps you can help me out. I’ve got a 499ci low deck Mopar in a 78 ClubCab D150 that I’m running a Edelbrock Victor intake and 950 double pumper on. It’s a pump gas build with Indy 440-1 heads with no porting just flash cleaned up in ports solid lift compcam I can’t remember the specifics of it 3500 8” converter motor made 556hp on engine dyno. Run strong but after watching this video I’m wondering if I might gain more from a Dual quad set up.
@UnityMotorSportsGarage3 жыл бұрын
Thanks Jimmy for the kind words.. Dual Quads will make more power when tuned right. It also depends on the manifold choice too... Because not all Dual Quad manifolds are created equal.. on my 393w when I dyno'ed it it made 575hp @ 6500 and 540 lbft at 5100! We did some testing I had a Edelbrock Vic jr intake with a 830cfm DP and it made 537hp and 501lbft.. the best part was the tunnel ram made more power and torque from beginning of the pull 3500 to 6500.. What manifold are thinking of going with? Andy
@jimmyford2713 жыл бұрын
@@UnityMotorSportsGarage I really don’t know what intake just yet. The engine has a lot of miles on it so I’m thinking of going through it. I don’t street drive it anymore so head porting and upping the compression along with more cam are in the works. I found the cam card its a baby solid roller from Crane 246/254 @.050 .543 .561 on a 112 LSA with 108 ICL. I’ll probably go with Comp on the new cam.
@UnityMotorSportsGarage3 жыл бұрын
If you swap the cam.. going to a 108 lsa will give you another 35-45lbft more torque in the mid range. I love tunnel rams.. but I know not everyone likes having to cut a hole in their hood.. I really like the Rpm Air gap dual Quad setups but you can only run Carter style carbs... The low rise single plane dual quad manifolds give away alot of torque down low because of the short runner length.. they run good up top though
@jimmyford2713 жыл бұрын
@@UnityMotorSportsGarage I’m not worried about cutting a hole in the hood I want to put a glass front end on it anyway.
@UnityMotorSportsGarage3 жыл бұрын
@@jimmyford271 now you are talking!! Tunnel ram for the win
@johnaccardi-19032 жыл бұрын
I'm running a 496ci big block Chevy, with Brodix BB2 heads, 10.5 to 1 pistons and a 720 solid roller cam and a weiand 1985 tunnel ram. I'd like to try a pair of Edelbrock AVS2 650cfm carbs. I'm located about 600 feet above sea level, got any tuning advise or instructions that will make jetting easier?
@bcbloc023 жыл бұрын
What does casper weigh?
@UnityMotorSportsGarage3 жыл бұрын
4180 with me in it...
@justinratliff1173 жыл бұрын
great video, what size carb and booster do you recommend for a .30 over 350 with a 6-71 blower? I am glad I watched your video, I didn't realize the loss of CFM. I was planning on running 2 Holley 450s, but am thinking bigger now.
@UnityMotorSportsGarage3 жыл бұрын
Yeah with a blower.. 450's would be a huge restriction since the blower capacity is much greater that what can be drawn through those small carbs.... If it were me I would run 750's on it.. with the 750's most of them have downlegs already in them.. so depending on how much cam and what the rest of the combo is.. roots superchargers are sensitive to restrictions above the entry of the blower..
@justinratliff1173 жыл бұрын
@@UnityMotorSportsGarage id have to find the spec card for the cam, a typical blower cam for a street car. Low compression rartio. Thanks for the info.
@cjbert67903 жыл бұрын
Andy, I don’t know why you would even attempt to run 660 center pumps on the street. Did you retain the almost 1to1 linkage setup?
@UnityMotorSportsGarage3 жыл бұрын
I retained all of the 1:1 linkage on the street. I decided to use the 660's on the street to show that it is just like any other Holley carb.. it can be tuned to do the job and get good mileage in the process! The next challenge I'm going after is to do the same with a pair of 1050 Dominators on MIXED UP BOSS.. Stay tuned Andy
@cjbert67903 жыл бұрын
My compliments to you. Holley engineers obviously didn’t have street in mind with those carbs!
@davidvonanderseck86493 жыл бұрын
Awesome video thanks. For a street car would you recommend a high rise or low. I’m wondering if I’ll loose throttle response. I was thinking low rise intake with 1 inch spacers. I’m building a 496 4 speed in a car
@UnityMotorSportsGarage3 жыл бұрын
What manifold are you thinking of running? with a 496 you shouldnt be lacking in the torque dept! lol.... What is the rest of your motor combo if you dont mind me asking? Andy
@davidvonanderseck86493 жыл бұрын
Unity MotorSports Garage it’s a gen 6 454 Budget build to keep it simple. But hears a few options I was considering. With the zz502 roller cam and valve train / a little port matching and exhaust work and spring upgrade with MSD 6AL I was thinking 496 with twin carb tunnel ram or keep it a 454 and go 454 twin turbo with stock intake With 496 i like the simplicity of setting up the fuel and its a lot cheaper. I wasn’t sure if I would loose throttle response and street performance on a high ram. But I like the high ram because it looks like will open the motor up in the Rs The 454 turbo build I got off of Richard Holder junk yard build. He did twin turbo on holly efi and 80 pound injectors gave 1000 hp. With that you need a big fuel system, injectors, efi, gt45 turbos .
@UnityMotorSportsGarage3 жыл бұрын
Sorry I just seen this post... You will lose a small amount of low end torque but not as much as you would with a big single plane... From my experience everytime I put a Ram on a engine the owner Loves it... On a 496 torque won't be a issue.. Andy
@davidvonanderseck86493 жыл бұрын
Thanks Dave. I just got a 93 f350 4x4 last week got the motor running good running motor. So I want to get the stroker kit 557 for 1300 from eagle and rehone the cylinders and give her a bath. But there's a problem I found out that what restricts the 460 is the heads on the exhaust. There's a massive intake. So I think if I do a lot lot of grinding and open the exhaust and run a good rv came with a duel plain intake I'll be good
@_Otaku-kt8be3 жыл бұрын
Tuning dual quads it too complicated for my tiny brain and physically impossible for me so I'm replacing my dual Edelbrock Carbs for dual Holley Super Sniper Efi because I have confidence that I'll be able to make adjustments after some time learning.
@UnityMotorSportsGarage3 жыл бұрын
You will be basically making the same changes with EFI as you would do tuning carbs.. To me the Carb vs EFI is Analog vs Digital type deal... coming up when I did i cut my teeth on the 5.0 mustang EFI system and went from there... I like EFI but i really Love carbs and once I learned how to manipulate each circuit of the carb I was able then to use my wideband o2 sensors to get the same results as EFI... one thing hard to beat with EFI... The cold start! Thanks for watching and please subscribe as I have some cool stuff coming up... Andy
@TheProchargedmopar3 жыл бұрын
👍
@FrankenVega3 жыл бұрын
What about tunnel rams and cams that have a lot of overlap? I'm having problems with my SBC, tunnel ram and my Holley 390's. Having a off idle stumble an occasional backfire thru the carbs. Any ideas would be greatly appreciated.
@UnityMotorSportsGarage3 жыл бұрын
That is from a lean condition.. you will need to increase the squirter size... If that doesn't quite cure it then you will have to upgrade to 50cc Accelerator pumps.. hope this helps what size squirters do you currently have?
@FrankenVega3 жыл бұрын
@@UnityMotorSportsGarage I started with stock 25's went to 27's now I'm at 31's. Am thinking 35 would be max with the 30cc pumps.
@UnityMotorSportsGarage3 жыл бұрын
How much timing are you running on your setup... And what pump cams are you using?
@FrankenVega3 жыл бұрын
@@UnityMotorSportsGarage Timing is 36 degrees total. Pump cam is the pink, set on #2 hole.
@jesseparadis61416 ай бұрын
I'm currently running rpm air gap with edelbrock avs2 800 cfm on my 454 with 600 lift cam if I got a tunnel ram could I just get one more carb to match the one I have and run 2 avs2 800s?
@UnityMotorSportsGarage6 ай бұрын
That is what I would do!
@jesseparadis61416 ай бұрын
So your saying it would idle and drive good with 2 avs2 800?
@jesseparadis61416 ай бұрын
And my carb is electric choke and I see a used carb for sale same as mine with electric choke is it possible to run 2 carbs both with electric chokes on a tunnel ram would it affect how it runs? When it's running chokes are open so I don't see why it won't work lol just will look funny running 2 carbs with electric chokes ? Let me know if that is possible pls?
@cjbert67903 жыл бұрын
By the way, I like your explanations better than David Vizards.
@UnityMotorSportsGarage3 жыл бұрын
Thanks for the kind words, but since David had brain surgery he has had a hard time conveying his thoughts sometimes... He is getting better but it has been a slow process. Andy
@3roxxxy Жыл бұрын
409 tunnrel rams are so hard to fine
@claytonstoolbox5 ай бұрын
What about a tunnel ram with a single carb? Is that a decent system?
@UnityMotorSportsGarage5 ай бұрын
Not really.. because of distribution issues, now there is a caveat to that if you have a large downward tapered Plenum they work really well. Most of those designs are sheet metal style intakes. Hope that helps Andy
@claytonstoolbox5 ай бұрын
@@UnityMotorSportsGarage Thanks, I am determined to get this to work well. I can have a new plenum made or modify the old plenum. But I just can't find much info on it. And the info I do find is really not based on much. Do you have any suggestions about making a plenum or suggestions where to look?
@glennraydorzok40532 жыл бұрын
a few mmmmm dissagreeable points, but very good! thanks
@speedygonzalez6454 Жыл бұрын
You need power????..tunnel ram or ho home..that's it
@jongallant60543 жыл бұрын
Edelbrock messed up when they captured a Rochester Quadra puke on their manifolds. Holley is what real Hot Rodder want. Nobody winning at the drag strip wins with Edelbrock Quadra pukes on their car. Avoid Edelbrock dual quad manifolds. Resale sucks on them too. Just sayin.
@TheRoguelement3 жыл бұрын
I wish you would not use the dual quad lingo so much..say 2/4s say anything just stop saying dual quad...Nobody I know used that terminology.. ..and Nobody I know puts 2/4s on a stock motor Nobody...so let's move away from the 600cfm card discussion ...and as far as car shows and seeing a car with a tunnel ram yes they usually have 2 /4s on top.