HOW HIGH? HOLLEY MID RISE VS HI RAM VS CHEAP, STOCK TRUCK (ON TWO MOTORS!)

MID RISE VS HIGH RAM LS INTAKE TEST-HOW DO THEY RATE? WHICH INTAKE SHOULD YOU CHOOSE FOR YOUR PERFORMANCE LS MOTOR? CHECK OUT THE RESULTS OF THIS SHOOTOUT BETWEEN THE CHEAP, STOCK (EARLY) LS TRUCK INTAKE AND THE HOLLEY MID RISE AND HI RAM INTAKES ON BOTH A MODIFIED 6.0L AND A 383 SROKER. IS THE TUNNEL RAM-STYLE HI RAM THE ULTIMATE LS INTAKE, OR IS THE MID RISE THE BEST ALL-AROUND CHOICE? HOW WELL DOES THE DUO COMPARE TO THE FACTORY TRUCK INTAKE? THE BEST WAY TO FIND OUT IS TO RUN THEM BACK TO BACK ON TWO DIFFERENT TEST MOTORS!

[@J2000Z71]

The best data backed info on KZbin, or anywhere I can think of to find. Hands down. Thanks Richard.

[@richardholdener1727]

Glad it was helpful!

[@burtmoore2101]

That stock intake really made a lot more power down low and all the way up to that 5800-6000 RPM mark. Perfect for a daily

[@TotemTom]

4:33 uhhhhhhhhhh

[@XtremeCookiez]

That scared the hell out of me

[@tomcelica]

4:34 Lmmfao. Random engine noises ftw!

[@richardholdener1727]

people like the dyno noises, so...Let's Make Some Noise!

[@zachjuduh3682]

Lmao

[@lucysmith4242]

@@richardholdener1727 loved it

[@davidtryon1205]

I thought I was hearing things lol

[@YZFoFittie]

There was some other real quiet stuff I heard here and there too... lol

[@MobWithGuns]

Richard and Matt/SloppyMechanics are the true OG’s for saving us truck guys money while going fast

[@tngtacticalmiata1219]

Man.... Unless you're building the ultimate "bling" rod the Holley seems like a complete waste of money.

[@Thegoose95]

I had a hi-ram on a boosted 4.8 and it was lazy as shit below 6k rpm. Even with a 3400 stall. Swapped to a tbss intake and it made a world of a difference.

[@bootlegthepirate]

I really want to see a SBF intake manifold comparison with the new Holley manifolds and compare them to the gt40 and other old school efi offerings.

[@hardball107]

Well, my mind is made up. For my weekend warrior I'm running a stock TBSS manifold. I don't believe an extra 25 HP or so past 5800 rpm with shift points at 6200 is worth an extra $1000.

[@chipcurrey653]

The Holley won't make much more if any more hp than the TBSS. The TBSS isnt in this test I think because it would make the Holley look all around terrible

[@kerrybradley3536]

@@chipcurrey653 very true! It would blow all of them out of the water for 1/4 of the price

[@tonymickens8803]

@@chipcurrey653 That's why I Kept the stock tb on my 2008 5.3 Z71 Flex Fuel 1/2 ton, it's the Same as the TBSS one, just hooked up a Airaid tube and filter kit to my Stock Air box, Duel exhaust, Performance Wires and coils with Delco Iridium plugs and a E85 Tune, the Stock Injectors and Pump were Already Great to begin with and it came with 373 gears, it Runs like a Raped Ape and I'm VERY Happy with my 245K Mile Silverado!

[@keithmceuen8775]

I’m looking at the loss of torque over thousands of rpm and it just doesn’t seem worth it

[@sstevocamaro]

Yea but if you’re in a race you’ll have the faster car with the high ram. You can make up for the bottom end with a gear or torque converter

[@docshotrodnhobbies9019]

Depends on what car you're putting it in...a light car you won't need that torque and you can use the less to torque to help with traction down low

[@rustysausage69]

@@sstevocamaro Who in the right mind would make up for a 15hp gain in a 1000rpm window and loss everywhere else by re-gearing and re-converter-ing their car?

[@sanchez_lsx1198]

@@rustysausage69 if you watched the video, the high ram made nearly 50 more hp, so with a big stall and good gears you'll be in the high power band and run a faster track time.

[@Ws6Ms]

@@sanchez_lsx1198 yeah top end pull would be stronger

[@74beeper97]

Hard to beat that truck manifold for the street

[@kerrybradley3536]

Pick up a TBSS intake and you'll beat them all!

[@74beeper97]

@@kerrybradley3536 yep… That’s what he said. Would be cool to have had that one to compare as well.

[@I_like_turtles_67]

I was gonna say the same thing.

[@natemartinez4595]

It's an ugly sumbitch but quite effective. Tbss intakes are spensive and hard to find, at least in my area

[@srage9188]

4:33 🙀 what the hell Richard!?!

[@lexthelonewolf1864]

Lmao

[@timbowalk]

Exactly what I needed

[@bigredracer7848]

600👍's up thanks again for taking us all along with you for the great show

[@danawilkes6174]

I like the Holley Cross Ram on the Cathedral heads. This is an unbeatable combination on the Street. You have the highest usable horsepower/torque curve...

[@NightWrencher]

How close are we to the piston flip trick test???

[@andycrips]

I hope they send you a "Lo-Ram" to try out!

[@Wecanslide_HSW]

Same here Andy

[@Silvermoss-Auto]

Let's just say I'm sure 36psi is the limit according to my shops ceiling.

[@chipcurrey653]

So the average power can be as bad as possible?

[@andycrips]

@@chipcurrey653 Yeah I can't imagine those little short runners would do well.

[@richardholdener1727]

short runners=very high rpm (and even more loss down low)

[@sixx6sixx107]

Wonder how would the ICT BILLET spacer plates affect these numbers 🤔

[@ChurchAutoTest]

Keep the content coming Richard. GM Truck/TBSS mani still best for most street apps though. Was wondering if you ever did a test on windage/oil level losses on LS motors? I know its far more important on street where the g-forces are moving oil around, but wondering if you've seen power differences running 1/2-1 qt low on stock LS pans?

[@richardholdener1727]

I always run the motor 1/2 qt low on the dyno-it makes a difference

[@jeremykastrup6907]

So, the tbss breadbox is the goto manifold ?

[@trentdawg2832]

I have a square port breadbox just sitting in my garage

[@3800TURBO]

Tbss for cathedral. LS3 for square port.

[@phillipsedlon7548]

So, unless you're building a 7000+ rpm screamer, you're better off saving your money and sticking with the stock manifold. Very interesting.

[@jasondoyle355]

Best manifold you can buy for an engine that runs below 6k is TBSS hands down.

[@sepg5084]

The mid-rise does not seem to offer good value. I was surprised that the hi-ram which has longer intake runners than the mid-rise, had better high rpm characteristics than the mid-rise. Shorter runner length usually perform better at higher rpms while longer runners run better at lower rpms.

[@phillipsedlon7548]

@@jasondoyle355 yeah, but testing done showed only @10hp and 5 lb/ft of torque gain. And gains were only over 4500 rpm's.

[@jasondoyle355]

@@phillipsedlon7548 not sure what testing your watching there bud

[@daviddenman7479]

What if you compare these Holley manifold vs the FAST manifolds? Like the LXRT or whatever it’s called. Keep it up. You’re awesome

[@michaelblacktree]

I was curious about the mid-rise intake. Thanks for the info! 👍

[@kerrybradley3536]

I would like to see the comparison done again with a turbo set up.

[@richardholdener1727]

SAME RESULTS

[@stevenvella7466]

You should do a video about holley hirams on ford motors.

[@garystolworthy3365]

So, if its a street driven vehicle the truck manifold is better than either holey.... Unless your wringing it out. Not a worthwhile trade off. Better seat of the pants power from factory truck manifold.

[@ldnwholesale8552]

So for an everyday street hotrod you are a good deal better with the truck intake. More torque. And smoother. As someone who thinks less than a 4" bore is a gunker that 4" stroke junker was very healthy. But take a 366 SBC with eqivilant heads a carby will probably beat it.

[@dbeasleyphx]

Seems like the Holleys need BOOOOST!

[@richardholdener1727]

does the same thing under boost

[@johnclary729]

If it wasn't so ugly the truck manifold on the 383 would be the one for my T-bucket. I spend way more time below 4000 than I do above because of the tight turns and short straights of most of the courses I race on.

[@timweb1510]

Good lookin expensive intakes, still like the look of the Trickflow box R better

[@Rrottweiler]

Cmon, we need Early Gen 3 Hemi vs Eagle Hemi intake, with adapters....

[@b00sted_SS]

Curious how this would effect 1/4 mile times, does that bit of gain up top beat all the gains under 6000rpm of the stock manifold?

[@sstevocamaro]

Yes.

[@bdugle1]

37 lb-ft peak-to-peak, wow! That’s with only 19 cu in. The ported 706s really dropped the ball at the top, though, with the smaller 6.0 taking over. The AFRs must really work well! There’s no doubt that a TBSS or Dorman LS2 is the way to go for the street if you’re running cathedral port heads. That and more cubic inches…

[@richardholdener1727]

NOT SURE HOW YOU FOCUS THAT CHANGE ON THE HEADS

[@bdugle1]

@@richardholdener1727 Just observing the 383 gave up early (compared to the 6.0 peaking over 7000 rpm), and I’d guess the heads were responsible. The cams weren’t identical, but similar. You’d expect the larger displacement to peak earlier, but not lower.

[@josephthrasher3186]

Too bad we can't get more of an old school style tunnel ram with a little bit longer runners for ls engines.

[@177SCmaro]

Incidently, they tested a bunch of manifolds on the coyote and found kinda the same thing, the ported 18 and up stock gt manifold was the best overall, esp for the money. Some of the much more expensive gt350, boss, Ford racing, holley manifolds made more peak power but the 18 was pretty much better everywhere else.

[@daniellara4729]

Test hemi 5.7 Holley hi Ram intake vs 6.4 intake with cam

[@Geemoney65]

We want to see Brian Tooley intake against all others and Brain Tooley cam setups

[@richardholdener1727]

high rpm intake

[@deanstevenson6527]

Bryan Woody Wood brought me here. 🥝✔️ Hi Ram!

[@labisk]

If you get the chance test out the sheet metal intakes that holley makes. There are 2 the "low pro" and the "hi ram" version of the holley sniper sheet metal manifolds seen alot of people run these would be interesting to see if the 500 dollars are worth it over stock ls3 manifold or truck manifold

[@b00sted_SS]

Nothing makes sense dollar wise over the rectangle port LS3 intake, and the TBSS for cathedral . “the currency of horsepower” , unless your in it for looks alone, money is just better spent elsewhere for making horsepower edit: for street/strip applications

[@richardholdener1727]

I have tested all of those-please see the ls intake videos (cath and rec port vids are up)

[@codydertinger7404]

You need to do a comparison with the lsxhr

[@richardholdener1727]

I have run the Carbon Fiber version of that

[@UNEEK_LOGIK]

Ported or Non-Ported Factory Intake??!.. THAT IS THE QUESTION RICHARD would it make a difference?!!. Would it affect the runner length?? if you port out TBSS/NNBS intake??!.

[@kleenhall6885]

I wish you had the tbss/nnbs on this one

[@richardholdener1727]

that video is up-I tested them all

[@stephendukes]

Can it run on a first gen LT and what would be the power difference?

[@PunisherDMT]

I think I'd favor the FAST intake for overall power on either of these combinations.

[@GETLITUP69]

Time to test Holly's new Lo-Ram intake vs Texas Speed vs Fast 102.

[@richardholdener1727]

a fast 102 will kill them up to 6500rpm

[@HotGritz910]

Hey rich do you think you could do a test with the stock cam and performance heads? Im wondering if the stock cam profile would still fall off near 5500 rpm with the extra flow from the heads. Imagine keeping all the tq from the stock cam down low and hopefully getting an extra 1000 rpm from the heads .🤔

[@richardholdener1727]

see the CNC-port head test on the LS3 video-it didn't do that-the intake and cam dictate the effective rpm more than the heads

[@HotGritz910]

@richardholdener1727 awesome I'll check it out!

[@trentdawg2832]

The big 3 needs to send you 1 of each of there top dawg motors ... lt5,hellcat motor ,and 7.3 gawdzilla......we all know the lt5 will come out on top, unless fomoco factory supercharged the lizard

[@Ws6Ms]

426 Hemi vs 7.3 Godzilla vs 454 LSX would be awesome

[@PSA78]

It would be interesting to see idle and bottom end performance with dual throttle bodies to take advantage of the dualplane design, especially combined with a reduced LSA. That might shift things much more in favor of that manifold. :)

[@richardholdener1727]

it makes less low speed with the dual throttle bodies-and this will happen with any cam profile compared to the others

[@PSA78]

@@richardholdener1727 That's interesting, I didn't think it would be that much of a lose with the throttle bodies at low to part throttle. If I recall correctly a previous test with a single carb on dualplane gave increased bottom end. 🤔I need to check your previous videos again, maybe it was against singleplane carb manifold. 😄

[@scotttimpany2845]

162k subscribers.... not too shabbayyyyy

[@Mexicantubedotcom]

@richard can you test the new LoRam intake and compare to these

[@turbotrana]

what was that noise at 4.33 ?????

[@67F3camaro]

Does anyone make a high ram w/ variable valve setup to get the best of both worlds?

[@terrycarter8929]

I am really surprised that the stock manifold is better where you use it most compared to the Holley.

[@richardholdener1727]

THAT'S WHY WE TEST

[@austindoud273]

You're surprised a long runner intake makes more tq????

[@terrycarter8929]

@@austindoud273 usually the aftermarket intakes better the stock in most of the curve. This situation you are throwing your money away by buying the aftermarket piece. Unless you are an all out racecar.

[@chrisscott7614]

Everyone needs to go sign the rpm act bill of 2021 HR3281 to save our racing/mods

[@thewoodsman5261]

What I take away from this, GM put a lot of time and money in the design of their manifold. Might look ugly but damn it performs well!

[@russelljackson7034]

Right on

[@Kstang09]

How high? Never high enough 😂

[@OOICU812]

I'd like to loan you my motor for some of these tests.

[@antonjimmy5636]

Should've had an earphone user warning for the dyno pull haha

[@drsethsr]

Captions?

[@chrisbreckenfelder7227]

In that test though could you not lower lsa on the cam to regain the torque you know you'll lose and have a torqued engine that still pulls in the upper Rpms...even though it may be 10 less...seems like you could get both if willing to give up a bit at absolute peak

[@richardholdener1727]

the cam is not the issue here

[@chrisbreckenfelder7227]

Say 35 over at the top and gain 35 ish extra tq at the bottom by dropping the lsa...if you wanted to run the hi ram over another setup

[@gkinghsmith9352]

Hi Richard, I know it's not your thing, but could you put together a high RPM config? I'm thinking the right cam, valves/heads/header, and then test the short runner length stuff. For this test it would be helpful to have specific lifter package and displacement/rods/pistons. What do you think?

[@richardholdener1727]

take a look at the 8000-rpm destroked ls3 video (4.8 crank in ls3 block)

[@atomik_squirrel2393]

You like a single beehive or dual spring for my 235/240 .648/.609 111. Gonna get ported heads and have dual .660 rn

[@richardholdener1727]

DUAL

[@Chris-fl5lw]

Richard, on a 370ci forged Lq4 turbo street truck..which is better? truck will make 800rwhp through 4L80 and BW S480 turbo

[@richardholdener1727]

Hi Ram

[@Chris-fl5lw]

@@richardholdener1727 Thank you Sir! Christmas will be coming early for me as I plan to snag a high-ram for my winter build. Thanks for your videos and insight!

[@jameslahee9874]

Nolege is great brother how about the 565 big block Chevy I have rectangle Port closed chamber BBC awesome power maybe a show on the difference between rectangle VS oval port BBC High compression 13-5-1 rectangle closed chamber gear drive big cam 300 "300 dur *600 left need tunnel ram for rectangle Port BBC Help?

[@DanielFerreira-kc8ix]

Could you test the eBay sheet metal intake manifold

[@richardholdener1727]

I have many times-watch the ls intake video (the sniper is tested)

[@E90_who]

I’m curious how the low rise would do on an NA application. Not the super flat one but the one in between that and the mid rise.

[@richardholdener1727]

short runners = high rpm with loses down low

[@E90_who]

@@richardholdener1727 Thanks for the reply. I’m revving my dry sump 5.3 to 8000 so we’ll see how it does up top.

[@pico67ss]

Why did gm not make a 383 instead of going with a bigger bore

[@turbolq4]

Fat bores make efficient use of valve circumference.

[@Gbody_Bobbo]

I want to see BTR equalizer intake

[@richardholdener1727]

very short runner=very high rpm design

[@ianm432]

*slaps bondo onto truck manifold and starts sanding*

[@austindoud273]

No bad

[@timbowalk]

Lol he’ll yea

[@aw9680]

Ending at 4:33, Richard do you have an efi tuning video in your vast archives? I am curious about theory and practice and how to make the best adjustments to the system. I have a holley terminator x and don't know anything about how to tune it properly. (Yes, I know it tunes itself.)

[@richardholdener1727]

I only do wot tuning-i start rich-then lean out til it stops adding power (near 12.5:1 or so. I start with low timing (24 degrees on an ls), the add timing til it stops making power (on na motors), on boosted motors I limit timing

[@aw9680]

@@richardholdener1727 cool. Thanks. Love your stuff.

[@doobie2010echo]

I wana see the lo-ram also

[@richardholdener1727]

very short runners=very high rpm

[@Joshlindsay22]

Finally something on the mid rise

[@35057]

Not really an apples to apples, but have you done a stock vs Vic Jr and Single plane/dual plane intake, elbow and 90-100mm tb that was common with boosted applications a while ago. Always been curious as to how those perform.

[@richardholdener1727]

the single plane with elbow loses a lot of low speed torque compared to the stock truck

[@35057]

@@richardholdener1727 ahhhh interesting. Are there much differences between LQ and TBSS intakes?

[@sanchez_lsx1198]

@@35057 watch his other videos, the biggest ls intake test vid. The tbss is the best cathedral stock intake.

[@35057]

@@sanchez_lsx1198 good to know. I know he does a LOT and I’m sure it’s buried somewhere. But thanks for narrowing it down. 🤘🏻

[@rubenalfonzo33]

presente caracas, venezuela Richard H.

[@interceptor0166]

Can we try a 3 deuces set up?

[@DailyDrivenBikes_1]

I wish they would've done it on a ly6 engine that's a lot like an ls3.

[@rustysausage69]

The gains you'll get from ANY aftermarket rectangle port manifold are MINISCULE compared to a stock LS3 intake manifold unless you're turning 8000RPM, or they kill ALL THE POWER for an engine turning less than 7000rpm. There's a reason MSD doesn't offer a Atomic Airforce intake for a rectangle port, the stock intake is THAT GOOD. Stock rectangle port truck intakes MATCH LS3 manifold power, they just look clunky. I'm building a 13:1 416 stroker LS for my autocross car, ported heads/hefty cam/1-7/8 headers, STOCK LS3 intake.

[@richardholdener1727]

the ls3 intake videos are up (carb and efi)-hard to beat the stock ls3 manifold

[@user-qu4ph2dn4s]

What injectors do you run on stock intake? Thanks

[@richardholdener1727]

FOR WHAT POWER LEVEL

[@user-qu4ph2dn4s]

@@richardholdener1727 in your video you say you ran 70lb injectors but was thru all the intakes you ran? You pulled a 550hp on a stock truck intake. I’m running a 03 LQ4 with 317heads/ comp cam 54-470-11/ pac springs. I have read stock 25lb injectors stop at 325hp.. I would like to push the 500hp range

[@boblogIIIfan]

would be good to see what these manifolds are like on a sbf 302

[@youcanbesmartaskhow3857]

Really? An LS intake?

[@boblogIIIfan]

@@youcanbesmartaskhow3857 they make em for sbf

[@youcanbesmartaskhow3857]

@@boblogIIIfan uh yeah Tom and it's totally different.

[@jasonnellis3566]

Hello how are you doing. I'm looking at going to another intake Stock L83 on it now. Then there is the L86 and the 3 Holley rams. My thought is to get intake that will grow as I build without any problems. I'm looking at converting my 2014 silverado 1500 5.3L Z71 LT to AWD. HAVING TSP GEN 5 STAGE 2 CAM KIT INSTLLED. HAS 1 7/8 TSP LONG HEADERS NOW. WHAT YOUR SITUATIONS. THANK YOU SO MUCH.

[@richardholdener1727]

l86 works well

[@jasonnellis3566]

@richardholdener1727 awesome thnx. Now what about LT2 C8 INTAKE MANIFOLD AND WILL I NEED TO GET LARGER INJECTORS

[@docshotrodnhobbies9019]

Wonder what this comparison would look like with boost?

[@rustysausage69]

The same.

[@richardholdener1727]

intakes are the same under boost

[@chriswayne5379]

I just had a question im currently building a 6.0 and I had planned on doing the btr stage 3 truck cam and swapping to the 823 recport heads and a holly hi ram intake my question is how much hp would you think this setup would make?

[@richardholdener1727]

TAKE A LOOK AT THE BTR CAM TEST VIDEO RUN ON THE 6.0L LY6 (REC PORT)

[@chriswayne5379]

Do you have a part number for the dorman equivalent to the tbss intake that will work for the ls3 rec port heads? Much appreciated

[@jakejacob9814]

What if you stacked 4 barrel spacers between the dual 4b intake and the plenum 2,4,6"? Could you lengthen the runner's enough to compete with the stock truck

[@richardholdener1727]

spacers don't add runner length

[@jakejacob9814]

I forgot there's probably a plenum in the dual quad lower... If im grasping the concept right, if you were able to get a few walls up in the plenum, effectively isolating individual barrels to respective cylinders. The 4 hole spacers could be used to adjust runner lenght,,?

[@zmanphx]

Are all post 2007 truck manifiolds the same as TBSS on 5.3?

[@richardholdener1727]

NOT SURE

[@zmanphx]

@@richardholdener1727 4th gen truck manifolds with the 4 bolt TB I believe is the same manifold as the TBSS.

[@omegasquad868]

it would be great to see these type of test with factory stock engines like a 6.0 or especially the LS3/LT1 6.2 engines no cam upgrades just the intake manifold

[@richardholdener1727]

the gains are ever less on a stock motor-the first mod you should do to any ls is a cam and springs

[@timbowalk]

That would be pointless because anybody trying to change the intake manifold to make power will be changing the cam first

[@elmerfudpucker3204]

So for the street, just use the truck intake. Now do a comparison of the truck intake and the Trailblazer ss intake.

[@richardholdener1727]

that video is already up-see ls intake test

[@3800TURBO]

Stock LS3 FTW.

[@richardholdener1727]

that won't work on the cath port heads (and adapters make less power)

[@eatonv8747]

And you test a btr against these

[@richardholdener1727]

it is even shorter and designed for even higher rpm

[@96ryanwilliamson]

LS3 intake and ICT billet adapters vs. tbss?

[@richardholdener1727]

that combo is not good-that video is up-adapters are not good with ls3 intake on cath motor

[@dmdm9198]

Holley hates this guy lol

[@NightWrencher]

Holley gang

[@unclesquirrel6951]

Personally I blame squirrels

[@parkeranderson5074]

We’ve got a Raccoon problem. We always catch them crawling up into the dumpster and finishing off the beers. Yes they do leave drunk sometimes; it’s the most hilarious sight 😆

[@unclesquirrel6951]

@@parkeranderson5074 oh my God LOL a drunken raccoon that has got to be good entertainment lol

[@parkeranderson5074]

Uncle squirrel 🐿🐿 There’s usually a group of them and it’s the funniest thing ever😂

[@unclesquirrel6951]

@@parkeranderson5074 😂😂

[@Lagrange1186]

so... since the mid-rise CAN use dual 4 barrels...and we have all learned that multi carbs are awesome... can we PRETTY PRETTY PLEEEEEEEEASE see that test? if its on a 383 LS even better!

[@sixx6sixx107]

I'd love to see a single 750 vs twin 750s

[@deegan727]

How about 2 throttle bodies, twin turbo. A turbo to each TB. Methanol no I/C. For science.

[@richardholdener1727]

please watch the ls intake video-I did that

[@mattblack9344]

Hi rams look cooler and have more top end capability.

[@ForneyRider]

When does the valve train give out? Is the extra 1000rpm power band worth the $$$???

[@drummethod97]

🚀🚀🚀

[@Darkhorse393]

Need an intake like that for the Godzilla

[@TheProchargedmopar]

👍💪 Boost!

[@richardholdener1727]

same

[@TheProchargedmopar]

@@richardholdener1727 But Better.

[@jaygozer3883]

Whats the point in the tests if you use modified engines. The intake results won't be the same with a stock motor. You have no baseline or control group.

[@richardholdener1727]

no one puts a Hi Ram on a stock motor-its a bad idea

[@beaumont9072]

America 🇺🇸 💪🏼🤙🏼🔧🔩

[@oldscratch3535]

For a street engine you're not going to do much better than the stock manifolds. You're going to be spending 99% of your time at low rpm so it makes sense to have access to that power down low.