Holley sniper efi 1 year review

[@yannkaloustian2913]

Honesty wins the day. Humble guy, experienced mechanic, valuable insights and not trying to sell us anything. Man, I love you.

[@GorillaCookies]

Ive had no issues with the Holley Sniper EFI on my AMC 360 in my CJ- 5 whatsoever. Its been about 14 months and just under 9,000 miles since rebuild of the 360 and efi conversion. And the throttle response, smooth power and mileage improvements are fantastic

[@scoutdogfsr]

Modern factory injection is awesome! Aftermarket F.I. on vintage vehicles has never worked well for me. I finally started carrying a Qjet when I went on long 4wheeling trips. Finally gave up and the Qjet now provides the juice. Oh and she runs from 5000 to 12000 ft elevation around Colorado with zero failures.

[@peleger1]

Great video. I bought my 70 pontiac with it on the car already. I guess i have been lucky because no issues. The reason i really love the setup is because i live at 10,000 ft elevation and every drive i take it is down hill going there. No fiddling with air-fuel mixture screws when i drop down to say 5,000 ft.

[@hardball107]

Great review. I also made my living over 40 years as a mechanic starting with carbs and points. My experience has been with the Fitech Go Street units. I can't speak to the Holley units but the 2 Fitech units I installed on my '74 Nova (400 SBC w/Vortec CI heads) and on my brothers '73 Corvette have been great. No issues and have run solid since day one but like you said both vehicles ran great originally. I did the installs including the fuel systems using Fitech's recommendations and It's worked well for me. The only bump I ran into was the cam profile selection during the set up, I selected Street/Strip instead of Performance on my Nova and my AFR and IAC would swing wildly. My bad for not fully reading the directions. Other than that smoother idle, better mileage and power have been the benefits.

[@stevelangworthy9553]

Living the same regrets. Worrying about the reliability when you just want to get in and go for a nice ride...wondering if you're going to be thrashing under the hood on the roadside and wishing you had a laptop, spare O2 and tin-foil to shield wires. Carburetor, was a little rough at first on a cold day but heck, give it a minute to build up a little heat and you're set and yes, even with a chokeless carb! Really wish I had seen this before I let my engine builder sell me on this idea. Ease of tunability was the selling point but in reality I'm spending more time tinkering with the sniper and idling in the driveway to get it to run consistently and reliability than I ever did with a carburetor. It works when it works (worked great on the engine dyno) but when it doesn't, you're screwed. The intermittent gremlins and the terrible support from Holley is another factor. Another "like new" Sniper Xflow to soon make an appearance on Ebay. Thank you for this honest review.

[@matthewdirisio6269]

best video i've seen on EFI conversion(holley sniper)....super informative for someone like me that needs to make a decision. Thanks for sharing

[@brucemct1144]

Good review. Thanks for that. Now I'll stick with my 4bbl carb and use my vintage Penske AFR diagnostic meter once in a while...and a screw driver.

[@jimmymarshall7629]

You just saved me a lot of trouble and money. I love my carb anyway. Thanks

[@matthewskaggs3792]

These videos are good, I bought a sniper system and hyper spark, and videos like this at least give me potential pitfalls, and things to brace for. I had a fast EFI system and after that have been a big fan of EFI, but as stated they are not perfect and can have their fair share of headaches.

[@jamesschwede4117]

Great review! I have the sniper on my Ford 408 stroker and it had the same IAC issue on the engine Dyno, had to fiddle with it to start working again. Haven't put any miles on it yet but I'm glad you pointed out some things to look out for. Please post if you find a better IAC! Thanks!

[@rudyyarbrough5122]

No one seems to understand that with a carb, you know what to do if it doesn't run just right or needs a little tuning. But with these FIs what does the average guy do when it isn't working right? I'll take the carb any day over something that I will have to take to an "Expert" to fix.

[@loganwadley1895]

Appreciate your honesty was thinking on buying a kit for my small block chevy but i think i keep the carburetor. Cheaper and simple

[@finnroen2334]

Agreed! If people put the same effort in mounting and tuning their carburetor based fuel system as the have to do when mounting and tuning EFI, they would have about Zero problems.

[@406_chevelle8]

Amen brother. These efi swaps arent as easy as everyone thinks or is told. I've tried the fi tech, and its definitely a learning curve. Efi timing with a distributor is hard to wrap your head around, for me anyways. Long story short went back to a carb for a year and decided to try multiport injection, we'll see if its worth it, I've been peicing it together plus ignoring the price tag lol

[@ozzie1684]

Killer video man , I’ve installed 2 of these one with a hard time and another with great success to this point. Really liked the video

[@Dimeblack]

Thanks for the info. Bought 2 years ago, just now installing.

[@alabamahouseflippers4480]

I'm 53.Thousands of carbs in my town (back in the day) and everyone making it to work. The issue I have with FI is great when running but when it goes down everyone is standing around scratching their head wondering what is wrong . Is it the O2 ,weak fuel pump, IAC , throttle body ,cam sensor , computer etc, etc.

[@oldsrktracer]

I work on contemporary cars so the diagnostic is approached like a new car . Sadly lots of the older generation don't know how to work on carbs. It's a little give and take or a 50/50 just as much as cars where just transportation then they are the same today. Some know some dont

[@steamy1225]

Thanks for the review , that helps a lot to know that the system isn't perfect. I may just stick with carb on my 83 Ford F100 V8. It has one on it now and runs great ,even in the winter cold Temps.

[@turtlefro9054]

I have the sniper efi and hyperspark in my 79 c10. My first efi had the tps go, then the wbo2 sensor went, then an injector stopped firing. At 220km. Holley sent me a new sniper. Second one comes and an injector is already dead so swapped it out with 1 from my first sniper. Then the mat is reading high error. At 460km now. Holley sent me my 3rd sniper. It's on my truck now and running but I feel like I shouldn't be on my third one after only a total of 460km. But no stock so I got upgraded to a super sniper. Hoping for much better results thia time around

[@scotttaylor1820]

I went with the sniper on my 69 Camaro with a 383. Also did it because I was building the car for my wife. Initially it hated the msd distributor, kept kicking back and breaking flex plate teeth and starters. Went to the dual sync, better but not perfect. Had to change coil, rfi interference. Then coolant temp sensor reads 20 off, had to replace sensor. Then tps read 20 percent at idle/replaced. Then 2 o2 sensors in 1 day so holley replaced the ECM. 2 weeks after getting it back it won't go into closed loop because coolant temp unavailable even though it is reading on the display. Coming off in the spring and going back to the carb.

[@rudydog420]

Iv went threw 2 hyper spark distributers. For some reason they get carosion build up in them. Holley said it was from the inviroment. $100 to rebuild. Funny that this iowa inviroment and a heated garage could do such a thing. Right?

[@rodhonco5681]

Wow

[@RALPHD57]

Great honesty, Thanks! Going to keep my perfect running Q-Jet 454 for a lil while longer...

[@oldsrktracer]

I built a 468 for a guy with an Impala. He had his q jet built by cliff ruggles. Works absolutely perfect spent wayyyy less than what I did on the EFI. We put EFI on one of his Chevelle's but I think the Impala has it beat.

[@RALPHD57]

@@oldsrktracer Mine was built by Mountain man fuel systems and has been flawless for the last 5 years...gets 22 mpg hwy ! Electric choke works perfect too...66 chevelle 454/700r4 355 gears...

[@theshark2804]

@@RALPHD57 man i wish i can het that. Im gu oing to keep doing research to gwt this carb right b4 i cash out for wfi

[@gonmad7073]

I've done EFI to Carb retrofits to a lot of cars that were having ongoing problems with the factory setup. I've found that a great option is the Quick fuel carb out of the box. Another option is if you know of anybody that flows carbs can set you up with a custom built unit go for it. I like the fuel injection option but I've also seen problems that even experienced builders are having & I prefer a fresh built Holley type unit. The AFB & the like are also excellent choices for the street, very dependable (old school) Played with the Predators for a long time with very good results but the rebuild kits are sketchy & the AFR is 12.5... Not good for mileage but performs VERY well.

[@hotrodray6802]

"Out of the box" Geez Louise.

[@JDRiggs-zg5bq]

Tuned port injection is better than throttle body injection, I'm old school, prefer a big air suckin' carb, the sound of the big butterflies opening up when you mash the skinny pedal.

[@thruitallauto2538]

I’ve been considering a efi system or doin a LS swap, already have the complete LS donor, an ran across the efi system , a lot of pros an cons on them my ole school 350 is rebuilt, but I can not get these carbs to run right anymore, that’s why I was considering the LS swap

[@joannepreuster2464]

I see you on KZbin, very good Thanks I have a few questions 1) you said something about an 02 VE sensor, do you have a part #? 2) Do you have to modify the wiring? 3) Do you rebuild carbs for other people? Thanks so much for your time and info Tom Preuster

[@oldsrktracer]

I lost the VW part number but it was for a 2010 Audi rs3. There is 2 sensors. On each bank. One has the correct plug. Just match it and you should be good. I did not have modify the wiring it was plug and go. I rebuild carbs for my builds. Have a few videos on them

[@cfmechanic]

I have found the iac valve only sticks when the spark plug wires are too close to the iac. Looks like your wires are close now. Try running all wires around back of the distributor cap it should help. Been running sniper over a year as well

[@oldsrktracer]

I will try that.

[@rossdean1997]

My experience with a FAST unit a few years ago on a SBC was that if anything goes bad such as a plug wire, cracked cap, bad valve guide, etc. the unit will try to compensate and you will be lucky to get home.

[@oldsrktracer]

I've had less issues with carbs so I'm sticking with them sold the sniper.

[@lleonardo2880]

Thank you for your review, can you please provide me the part number for the O2 sensor from Bosch. Thank you

[@kingjameswww]

excellent review, my feelings exactly, thanks

[@lancmac]

Thanx for the honesty... Best of luck for you...

[@lance2057]

Thanks, true stuff, I thought the Sniper would be easier to dial in on my 461 Olds, the diagnosis on this system has taken way too much, I may put my 800cfm Q-jet back on..

[@JeffLifeInReview]

Thumbs up to another not feeding into the KZbin image of being perfect. I swapped a carb as it was not consistent and I was scratching my head. Upon removal found the mounting bolts looser than they should have been and hose clamps also lose. This could have been contributing to my issues. So those are on me and I like to be transparent to me. Carb needed a rebuild anyway and old temporary carb I threw on there had been sitting in my stash for 20 years and it fired right up.

[@jaco5187]

I put a Sniper on my 66 Mustang. I threw it in the trash four months later. It WILL leave you stranded at some point. Left me stranded twice. No carburetor has ever left me stranded in 30 years. I went back to proven technology: Autolite 4100!

[@MikeBaloga]

Interesting review, we have like 5 guys in our classic car club that have gone EFI in the last 2 years and all swear by it. Several guys have had it on for years now, zero issues. Some have even said the days of the mechanical carbs are numbered. It sounds like the majority of your issues have been QC issues with Holley's specific parts they use in their kit. Maybe they are keeping cost down but impacting quality over all.

[@oldsrktracer]

It works. Im happy but i can see where people with little mechanical experience or in depth diagnostic experience would be mad like many have. Usually minor issues QC related imo.

[@oldsrktracer]

I still prefer a carb. My 72 cutlass that I race and drive alot on the street hasnt had any major issues but i don't think most would have the patience i have had tuning that new combination. My wife drives the Pontiac so that's why it got EFI.

[@MikeBaloga]

@@oldsrktracer I'm a digital guy, not mechanical. I don't have patience to continually work on things to make them operate properly and carburetors are no exception. My QuickFuel has been nothing but fussy the last several years and i've about had it. Ethanol and gas quality these days is also a contributing factor i'm sure. Sort of wish i learned more mechanical stuff on cars but there are new technologies that are making conventional mechanical parts that require some level of TLC in cars obsolete. Solid-state voltage regulator is a good example as well. Good video though, enjoyed your opinion.

[@oldsrktracer]

It all has its place. I deal with alot of electronics as i work in the collision repair industry and we see mainly newer vehicles. For me this kit was a way to add some modern tech to my set up and something to learn from my playing with it

[@erikturner5073]

People been saying that the day of the carburetor coming to an end since the 80's. I'm a professional Auto technician who likes carbs as well and even though EFI has it's plusses, carbs are not going anywhere in the performance world. I run a Holley HP in my carbed 89 mustang, and it will fire right up after two pumps in the middle of winter no prob if I decide to shake some cabin fever on a nice dry day. A well tuned and dialed in carb will work and are extremely reliable.

[@frankdatank7751]

Does your 750 chokless carb have a fast idle or is that only on carbs with choke, thanks your help is appreciated, I want to get me a q series carb from quick fuel and those are chokeless, mine has a choke but I have it were it doesnt really open because I live in Tx and its always hot but the fast idle is what helps it start every time!!

[@hvspeed6102]

Thank you for making this video. I was considering going to one of these units, but decided to go with a new edelbrock avs, glad I did. After a couple needle and jet changes it runs pretty good. Can you recommend a good afr meter? Do the portable ones work or does it need the weld in sensor kind?

[@oldsrktracer]

i would do a weld on unit with the bung fitting. i use the mtx-l from innovate and its been really good. worth the money.

[@reidbalzer9514]

The o2 sensor that comes with the sniper is a bosh wideband already...

[@oldsrktracer]

Yes. But the difference between what sniper is supplied with vs what VW supplies is very different. Sniper don't put 65k plus mile warranty on products like VW does on cars.

[@zackvanderlinden7185]

Thank you for reviewing the system after actually using it. Do you have a part # for the OE O2 sensor you installed? Have you found an appropriate IAC replacement? What is your impression on the "learning" capabilities on this system?

[@oldsrktracer]

The bosch part number is hard to break down but i would buy an o2 sensor from Audi for a 2008 Audi rs4 there is 2 per bank so make sure the connector matches . sorry i could not be more descriptive. I got the o2 sensors from my buddy off his rs4. The IAC is for an early 2000's dodge Dakota . im yet to buy it but thats what i was told to buy.

[@tompreska5774]

@@oldsrktracer 53032067AA is the part number for the IAC

[@bcframers5423]

Bosch 17025 is the correct o2 sensor

[@sanremodude]

I'm putting a 5.3 LS in my 72 GMC right now. I was thinking of going this route to keep it simple, add flexibility, and keep the old school carb look. Your review definitely has me second guessing that decision. The last thing I want is to invest that kind of money into a system just to have problems with it later.

[@oldsrktracer]

I mean it works just they have their quirks. I'm still on the fence but it's been well over a year and it's still working. Most of my issues where within the 4 month period. I haven't had any issues since but it's always in the back of my mind.... Will something stop working.

[@neilbrown82]

Keep it efi...

[@jeremycurtisisgay]

Great review. I've never had much luck with the carb because I'm used to efi efficiency. I really should learn the operation of carbs and learn to tune them but I'm always dealing with the fuel injection at work and just feel more comfortable there

[@oldsrktracer]

Hey there is nothing wrong with that. Carbs can be efficient. The closest thing to EFI is a quadrajet carb. It was made to meter all across the board and not give up a thing. Sadly it's misunderstood. I myself only know so much about the Qjet but it's carburetion at it's best. The holley will give up some somewhere as far as carb goes and the edelbrock is about as close as the OE besides the Qjet as you can get. The 3310 holley which was used by GM is also a great carb. It all comes down to what works best for you. I liked the sniper but the quality was bit there. If I go efi again it will be with something above this caliber of quality.

[@jeremycurtisisgay]

@@oldsrktracer my uncle who is retired now had my quadrajet on my monte carlo running extremely well so I agree they can definitely be tuned to run effecient. I guess, I meant that I efi with my skills and this point in my life is easier for me to get running to my standards. I really do want to get competent with the carb though because I have about 4 projects that I'd like to keep as close to original as possible.

[@calebryan3862]

I like your honestly so many people people only say bad shit about carbs when they've never used them like I'm 21 but most people my age assume carbs are useless for no reason other than they don't know how to tune them

[@oldsrktracer]

Thank you. I try to be as honest as possible.

[@FACEBOOKS-WBDS]

FINALLY, THANK YOU ! an honost non bias review. I never bought this system because I never wanted to be tied to Holley for everything it might need(consumabables/repairs). I think you nailed it on the head if this is what you want go for it. If a Carb will work for you fine But, know your system or be willing to learn.....or you will pay

[@wolfthornhawkridge5705]

I wish I would have found your review before I purchased the Holley system. In addition to the added heat it produces in the engine compartment, I have found it to be noisy and the latest thing is one of the injectors is not getting fuel. I took video because I almost didn’t believe what I was seeing. This is month 2 since it’s been installed and I am not impressed with it. But like you say, it’s almost primitive, has so many issues out of the box that should have been vetted long ago.

[@rickyricardo4433]

Great video I was about to get one but I will just stick with my carburetor. Save up more money and get a LS motor in the future

[@daviddixon2209]

The main advantage with EFI is the ease with which you can drive at altitude. The disadvantage is, the complexity. The reliability of any system decreases with the number of components added to it. I've had the same problems with factory installed EFI as you did but, I still consider it an excellent way to burn gas.

[@oldsrktracer]

It's no doubt a great way. I think this system is a little too "cheap" to be reliable . Parts quality just isn't there and there ecu in the main body is just a curse with rfi

[@slowpoke4547]

Think you for the great review.

[@musclebone7875]

No crusty engine's fellas!💯

[@matthewbick1927]

Ty big help working on one now for my boss

[@Turbochapman]

The IAC issue could be a symptom of the throttle blades being open to far. You seem pretty well versed in the sniper but some people assume that the blade location is perfectly preset at the factory. It is impossible to set at the factory, not every engine needs or will pull the same amount of fuel/air at the same rpm/load condition. To properly set blade position/Iac values. The engine needs to be warm, the two holes you covered need to be covered/plugged and throttle blades slowly adjusted. Holley has a huge forum with a great moderator that can help with 90% of issues.

[@Turbochapman]

I should add I used the sniper efi on a 383 stroker build and I should have tuned the engine and checked for mechanical issues before swapping to efi to minimize set up/tuning issues. But i got it to work flawlessly after a couple weeks of tuning and used the car as a daily driver until I was made a sweet offer to good to pass up and sold the car.

[@oldsrktracer]

I set the IAC.

[@stevenallen6245]

It's not perfect carb or efi us pro or backyard mechanics have our fair share of issues and in all we all learning as we go great info👍🏾👍🏾👍🏾

[@wakjob961]

Honestly think all these EFI solutions are better for stock daily drivers. For tuners and performance folks, I'm not so sure it's better.

[@rusticworks7219]

Thanks for review! I was planning on possibly using this on a 75 f250 460. I have mild build just looking for ease of use. I use it too occasionally haul my antique tractors too shows. This is just a tow toy and drive to work occasionally. Thanks for the input on it.

[@Roushfan5]

Did you ever go through with it? I'm considering swapping to EFI on my 1985 460.

[@CLPRPSD]

This sounds like my current state with my Fitech on a fresh, ground-up build carried out by a very reputable shop. It has been a challenge and I am nearing the end of patience.

[@tygrimes5681]

I used Fitech on my 306 ford, It Never worked right . After 3 months , it was more trouble than it was worth. I put the carb back on and never looked back.

[@danhall5218]

Fast ez 2.0 works very well . I have installed dozens of them. I have worked on the fitech, let's just say I'm not a fan . I personally haven't done the Holley yet.

[@1972fordify]

MSD atomic after six years. Two bad IAC’s and a bad O2 sensor. Always had a stalling issues when stopping the car or turning at an intersection. Countless hours wasted on tuning never corrected the issue. I’m pulling it out and going back to a carburetor!

[@kingjameswww]

nothing beats a carb for reliability

[@kevinhurt9742]

My only complaint is it stalls Under hard braking. This is an off-road vehicle and I don’t know if it uses too much vaccum?

[@oldsrktracer]

That might be a timing curve issue. I had a similar issue. The EFI cannot recover very fast from sudden changes. I had to change from 2 light springs in my HEI distributor to 2 mediums.

[@mrbeatty13able]

Part number for the vw O2 sensor please. I know this is a year old but I’m investing in the sniper soon. Email?

[@cashthestampede6629]

Legit review.... respect

[@jonathancarrasco3356]

Awesome information thanks for this helpful video!!!

[@angry408w7]

In these $1000 kits, you get what you pay for. They are mass produced and sit on the shelf at Amazon, summit and jegs. If you want a true system that will have the quality and support look at the pro m efi system. Yes it's twice the price and it will force you to fix things that were broken and you didn't even now about. I have full confidence in my system knowing that all the parts are quality and that the harness was hand built by Ron Francis wiring. Any problems I had with it were completely my fault because I tried to outsmart it. Sell it and go for the pro m. You will not regret it.

[@oldsrktracer]

My system works and people have proven they work well. I guess i made this video to point out its not a plug n play deal there's lots to be desired. I simply bought this kit so my wife would drive the pontiac and I could get my feet wet at efi tuning

[@angry408w7]

@@oldsrktracer if you're happy with and it's running the way you're satisfied with than that's all that counts. I'm trying to convince my wife to let me build her an auto mustang. Nothing crazy just a fox with a cam and flowmasters. Holley just released a kit just for fox bodies which looks good. I'm not biased when it comes to aftermarket efi systems. I've installed a few but the pro m is easily the system that has given me the best bang for the buck.

[@joelsmith1859]

Where you live I need my car timing set and carberator adjusted

[@josephtizol9695]

Great honest review. Really thorough thanks.

[@Albert-do4xp]

I'm in the process of setting this system up, I also have the dual sync distributor, the crank led light comes on but the cam light does not. I have a 283, cammed with ported heads and ported intake manifold. Anyone know why that light dont come on. Also it will not start.

[@regmason2329]

Technology is great. BUT, with complexity comes additional potential problems. Sometimes simple is best.

[@adriantomlin2902]

Isn't that the reason we have the old iron?! It's a reprieve from the modern day bullshit!!!

[@automech01]

I have this same system on my 1977 Pontiac Can Am 455 with a 230deg at .050 and 540 lift that always idles & starts fine. If anything it idles smoother than the carb that was on it throttle response is non comparable night and day difference

[@oldsrktracer]

I dont doubt it. Mine works fine has a few quirks. But the issues i mentioned are common if you follow sniper pages and forums. I still prefer a carb and im pretty good at tuning them.on i bought the sniper to learn to tune EFI. The only running issues this has for me is since i don't have spark control and I have a fast timing curve when i let off the gas for a fas stop it has a flat spot ( like it wants to die ) but i just have to slow down the mechanical advance in the distributor. The other one is it has a flat spot going from a dead idle to WOT. But again that's timing related. My timing curve is coming in fast like I would set it normally for a carb. My review was not to bash it but to a dress some of the pit falls. Specially for guys who cant tune carbs the expectation is this is better and perfect out the box . its a great product but to truly get the best performance you need to still tune it.

[@automech01]

@@oldsrktracer This is what i use for an ignition system. Pontiac V8 Dual Sync Distributor Part# 2384 and MSD 6AL Ignition box and a MSD Blaster SS Coil

[@oldsrktracer]

Yeah when I first installed this I wasnt looking to do all that . I dont think they had a dual sync for the olds at that time. It's simple enough to just change the curve in the distributor and dial in the tune on the lap top. I could do the dual sync but you figure the initial cost of the kit , install parts and what not. Now add a dual sync and an ignition system and what not. Its wayyyyy more than i really want to be into it for what it is. I have never had issues tuning carbs . always got good MPG and reliability.

[@violetcooney4518]

I have the very same car. Mine has a Holley 850 double pumper. I let the fuel pump run until it clicks and then push the throttle once and it starts in a half a rotation. easy to tune idle, just adjust screws until it squeals. oh yea no choke either!

[@violetcooney4518]

And wow! Whats the chances that two people would have Can Ams on the same topic. Not too many left!

[@firebirdbiff]

Man got this sniper kit for my 1970 firebird and I'm having doubts about it after seeing this video. Wondering if I should just send it back now.

[@toddsamuel8532]

What did you do. I just ordered one for my 81 Camaro

[@DuBstep115]

vw/audi and quality in same sentence :D made me chuckle. Bosch or "OE Audi" parts I have seen them fail at 300k and 30k.

[@oldsrktracer]

The Bosch sensors from the Audi worked very well. I work for a VW certified shop and we see lots of high mileage VW's with many of their original parts.

[@jameseastwood4984]

@dubstep .. they certainly did a quality job with their diesel emissions. 🤔

[@edwalker8375]

Odd you had those strange problems. It's true, carbs are simple(old tech),but work well.Thanks for the info. I would love F. I.. One problem, these. F. I. systems are just not adjustable enough(from the cabin). Also, these F. I. systems need more diagnostic info you can track while driving... (sensor output info. Etc.)

[@drdjh2003]

Mpg better with sniper?

[@oldsrktracer]

I would agree but in my particular case we where about the same on avg. As the carb

[@V8March]

Do you know with this is the same of the Atomic efi? (WBO2 sensor)

[@oldsrktracer]

Im going to assume its the same. Its a very common used o2 sensor in then aftermarket world.

[@mrnicecar9399]

What's your 3 year review?

[@oldsrktracer]

sold it

[@rodhonco5681]

Excellent Review

[@oldsrktracer]

Thank you

[@automech01]

Since when does a IAC valve keep the engine from starting? You have just as many problems with your carb.

[@oldsrktracer]

Actually no issues with my carb considering its a chokeless race carb. The IAC will prevent the engine from starting properly if ! The RPM wont ramp up properly. The iac is just a computer controlled fast idle by letting in more air. Which in the sniper has its own port. So if air cant come in properly it will idle rough and not run properly .

[@oldsrktracer]

Just to add to that. If on start you get initial fuel and no extra air. The engine floods on initial start up.

[@automech01]

@@oldsrktracer Was just replying to you statement 0:35

[@oldsrktracer]

Sticky floats are an easy fix . and it was fixed along with a few issues i found on my carb. Keep in mind i have 2 cars one EFI one carbed. The carbed one fought me all summer but there was underlying issues which have been fixed. It was a used carb but shit happens. Problem fix and the car is running high 11's no hiccups.

[@oldsrktracer]

I made videos on the repairs i made to the carb. Cheap fix that cost me nothing its a common 100 dollar problem.

[@modeverything1]

Good info!

[@littleblazer355]

Good job young one.

[@paveldalesssandro6920]

I have a summit raceing carb on my 84 gp and it work great she moves

[@oldsrktracer]

Yup my Pontiac works very well with the sniper and my 11 sec cutlass works well with a hp series 750 carb. Those summit carbs are a really old Holley design that Holley sold the rights too.

[@paveldalesssandro6920]

Well she was not a happy when I first put it on she she going ham fast slow o boy it was fun lol

[@detrickv]

I just finished installing mine, went to flip the key and didn't even have the touchscreen turn on, I went over EVERYTHING TOP TO BOTTOM and still nothing. It's like it's braindead this experience has been dog shit to say the least...im gonna call holley later today to see what they say but ill most likely have to return the whole unit and get another one with a different tablet.

[@oldsrktracer]

Double check you main power supply wire. .make sure it has power when cranking

[@isleofmann1088]

Most of the parts were outsourced and not made in the United States

[@sergiojacquez2277]

I was considering going with efi but not sure now

[@oldsrktracer]

Spend a little money on a good AFR gauge. Study your carb circuits with a good book. And tune it based off the AFR and what circuits it's using based off throttle rpm and load. Seems hard but it's very simple the AFR gauge fills in the blanks

[@drillwhore]

What is the fuel mileage difference?

[@oldsrktracer]

For me about the same as with a carb. But my carb was dialed in pretty good.

[@cfmechanic]

I can tell u first hand about fuel mileage. I have a hot motor but if I am light on the pedal I can get over 16mpg. If i am hard on it I get 5mpg. The sniper comes set more for performance then economy so if u are looking to save gas then I will have to adjust afr settings accordingly. But for me 16 mpg for over 500hp at the crank is pretty good. Thats without overdrive going up the grape vine to bakersfield which is quite a hill to climb. In my 4000lb caprice i cruised up mountain at 15% throttle no problem

[@bryanlawson9287]

You just have something else wrong... I installed a Sniper on 69 Chevelle with a 454.. Best investment I have ever made. Best upgrade. Best Tech Support too.

[@oldsrktracer]

Again it ran good. Parts failed. And really without spark control the unit is kind of worthless. I ran it for 2 years.. it was good. The only issue was the decel flat spot which was a timing issue. Could have Taylored the fuel table but it also could be manipulated by the spark advance in the HEI. Easily. I never bother with it as it was very minor. Besides that it works. It's just not worth it. A good AFR gauge and understanding of carbs will yeild great results . Again I'm fairly ngood with carbs the EFI was a crack at EFI for me and I saw things I didn't like and didn't want to waste my time with.

[@superduty4556]

I'm leaning towards a quadrajet again lol

[@duncandmcgrath6290]

Super Duty 455 I have so much love for the old Q-dogs .... some fresh throttle shaft bushings and a metering rod kit ... it becomes a perfect street carb

[@hardball107]

@@duncandmcgrath6290 They are great carbs. I'm doing FI now but still have many hanging in the shop. A few little mods and they're fully adjustable and smooth as butter.

[@armygreenfj3924]

Are you still running the Holley EFI?

[@oldsrktracer]

No long gone

[@armygreenfj3924]

@@oldsrktracer ok 👍..maybe i should stick to my avs2

[@VictorDeLaTorre]

I need an update on this please

[@oldsrktracer]

That's was the update got rid of it

[@Bige4u]

So basically... HOLLEY is selling the FI function over carburation, but using sub par parts. 0_o

[@oldsrktracer]

Pretty much. Go over to the pages. It's been a shit show lately with lack of parts and support.

[@coinzilla833]

Thanks

[@antonioc3768]

Good review no bull shite ! well done

[@frankdatank7751]

Go back to a carb, im using a quickfuel and it runs smooth!

[@oldsrktracer]

Keeping the EFI it works well enough just does not live tonthe hype out of the box. I wanna get into EFI tuning

[@frankdatank7751]

I here ya, Im using a 580hr quick fuel on my 97 ext sierra with 5.3, its my daily driver, I tuned the carb for power and good mpgs it took me long time to figure out how ,but I figured it out, I ended up using an afr guage to tune the jets. Im just amazed at how well it works, very consistent and affordable, but its a good thing to be able to tune efi, keep it up!

[@scootergeorge9576]

A slight problem with the sound...

[@demarques1911]

Imma stick with my quickfuel carb

[@oldsrktracer]

A good AFR gauge goes a long way

[@blacktop2001]

So the bottom line is the system does exactly what it's supposed to do and the user just has to learn about computers and fuel injection

[@oldsrktracer]

Not really. I had parts failures. I didn't want to waste time with this system. To really have full advantage id need to control spark and really the system is not worth it.

[@blacktop2001]

@@oldsrktracer so there is no way to control timing with this system?

[@oldsrktracer]

@@blacktop2001 not unless you buy their distributor and all the other crap. I bought as Holley stayed . Plug and play and the system is far from it. I didn't want to waste time since I had 3 parts failures in 4 months.

[@moparlover1968rr]

Sorry but wish you’d get right to the point

[@Glen799]

i am installing one on my dads old car just so then it can get down the hill drive way i have with out stalling in the morning

[@oldsrktracer]

If your carb is stalling on steep grades its either fuel float levels or you need vent tubes tied with fuel hose to avoid fuel slosh into the carb which makes it stall. Just fwiw

[@cobyporschifer221]

PLUG & PLAY ! AND PLAY AND PLAY AND PLAY

[@oldsrktracer]

Not really. The system as is installed leaves alot to be desired. See my cold start video. Where I put up the sniper in plug n play mode installed and ran with no laptop tuning vs my chokeless 750 race carb.

[@karlsracing8422]

Carburetor's only way to go.

[@oldsrktracer]

They both have their pros and cons. My wife daily drives the Pontiac with the EFI and cold starting a carb isnt always an ideal situation to put your wife in lol. I bought this kit as a mule to get into tuning efi and have my wife daily this car that just sits alot as i drive my olds everywhere most of the time.