Fantastic video, I did not know what the stealth was all about and now I'm going to go that direction putting a Sniper setup on some early 70's Broncos. I really need to log back into the course and start watching more videos!

Dude, thank you so much for this video... You should know how many times I harassed Holley with my EFI questions last year (to the point I don't wanna ask them anymore).. just because that part of their website is JUNK and they admitted it multiple times. I've had to look up a ton of utube videos and read 100s of web articles just to realise what was out there and what exactly it is need for my application. For somebody new in the efi game it is IMPOSSIBLE to know what's playing' with the different Holley kits. Glad you took the time to explain... I hope Holley is doing what they should be for your efforts. Keep making nice content man

As silly as it is, thank you for going through it. There's so many options and not much direction from Holley. Also appreciate the insight on the super sniper for ford distributors. Thank you Joe!

Thank you 🙏 i am about as entry level as it gets and was waiting for this video to come out. P.s, your channel is awesome. Thanks again from New Zealand 🇳🇿

That was a very informative vid. Thanks Joe.

Joe your videos are awesome and I tell everyone of my customers to join your training program really well detailed for any level of competency

Great info! Thank you!!

Exceptional video. Great job helping an old man decide.

Great video!! Keep up the good work!Maybe worth noting Holley lists the 1250 as able to support 650 N/A & 1250 with power adder. Also they list the 650 as able to support 575 with power adder.

Thanks for the complete break down. Iv been considering swapping our 68 f100 to the holly tbi and now, I know exactly what I want 👌

This is great for guys like me that have dabbled in factory ECU stuff but not delved into what the aftermarket has to offer. I'd love to see a video about the less common 1bbl and 2 bbl options. I have a Pinto road race car with a 2.3 Lima I would love to convert from a carb application.

Thanks for breaking down this information. I am currently having a 460 build for my 86 F-150 and I was considering going with a sniper stealth for my application. Now after listening to your insight, I am definitely going with that set up. Thank you!

Also another Ford option MSD Atomic 2 , it's sniper based along with ecu on the side and Ford correct kick down. This model also has fuel pressure on the handheld where snipers do not.

SOOO fkn glad I found your channel. 100% the best info on the holley efi stuff on the 'Tube !

So informative!

Thank you for this video, I've been kicking around the of going efi. Naturally I have a Ford so I'll have to pay the blue oval premium. I'm wonder your thoughts on reliability. I've seen posts where they died after a year. I'm running a MSD distributor with the 6AL on a 351w bored an stroked to 410, big hyd roller and 2.08 aluminum heads w/ 10.5 comp. Thanks again, new sub. Cheers '

Wow, sure glad I read all these comments! I was just getting ready to order my new sniper kit tonight but thanks to all these good folks for sharing their experience and stories. Now I'm going to run like hell the opposite direction. I think I'm going to research the Aces Kill Shot or the Aces Wild Card systems. I definitely don't want all these problems. I've went through so many carburetors on my old classic cars, from sitting too much, they start leaking fuel and just all around run like crap if I don't run them once a week or so. I really thought this aftermarket fuel injection was my answer but thanks to all you guys who took the time to comment, it won't be Holley😂

Hey Joe, great video. Instant subscriber! I have the Base Sniper 650 kit. If I want to upgrade to the Sniper Pro 1250, will Holley sell me just the Throttle Body? I am assuming the other parts of the kit like the O2 and other sensors as well as the touch screen from my 650 kit would work. Thoughts?

Exactly what I’ve been thinking about for about a month now.

Thanks for video! Are any Holley systems rated for E 85? I’m running E85 on my Jeep with amc 401 with 12:1 compression and looking into EFI

Side note: you can change injectors in any of these systems. The "bowls" come apart with 4 bolts just like any carb bowl, and any injector that is the correct length will fit. You can buy a base Sniper and install a set of ID2600's, for example. Also, page 9 of the Sniper Tuning and Log View Software has instructions for E-85 use... so my only guess as to why they would not recommend it is, maybe their 100lb/hr injectors don't come with stainless steel internals. So if you replace them, I don't see why you wouldn't be able to use it.

Love your content! I will be putting a sniper on my VW bug soon.

Joe, when would you vacate TBI and switch to MPFI? I'm also interested in using Holley EFI analog gauges

Great video. I love my Sniper.

@ Joe Simpson Is sniper 2 better for boating? I have twin 454 circa 1990. Sniper (1) received mixed reviews when used on marine applications. This would be naturally aspirated application and my current hp rating is 365hp. I am not put off by using the laptop software. It’s my boat so I care about durability and ruanability long term.

Very nice presentation

I have a crate 306 with a basic Sniper. Been very happy with it. I am going to put a supercharger on this winter. I would like to continue to use the Sniper I have instead of upgrading to the Super Sniper. The tune that's on there now will clearly not work once its boosted. Do you have any suggestions for a base tune to get started? I have heard of people increasing the engine size to make up for the extra air. Like program it as a 390. I called Holley and they just told me to buy a new Sniper. I would appreciate your input.

Hey Joe. I screwed up and adjusted the idle screw while the engine was off, now won't start again. Any suggestions?

Hey got ford 300 6 I have offenhouser c intake and upgrade cam and a headmen header pushing about what I guess is 200hp what would suggest

Would this plug into a spider efi on a 4.3? Does this only replace the throttle body? But, keep the spider? Thanks.

I have a 350 Chevy Small Block. Which one would I need for better fuel efficiency and at least 30 to 50 more horse power?

Does one need to upgrade to the Terminator X in order to get integrated transmission control? 4L60/70/80

I am and I am. Damn Joe how did you know?

What all would I need to "efi" my 1989 FJ62 Toyota land cruiser? From Namibia, it used to be an Untag vehicle used for peace keeping. I want to keep it with original engine and hopefulle be able to efi wuth some advice from you? Can you also turbocharge in conjuction with sniper 2 efi system?

Have a 69 ford mach 1 with a stock 390. Which system do you currently recommend?

does supersniper need external fuel pressure regulator for running turbo ?

Hi , I am planning to install a sniper 2 on my 402 BBC and wanted to couple it with a NOS system (maybe 50 shot) . I ordered the sniper 2 and the NOS dry kit , but then Holley informed me that the sniper 2 no longer supports the NOS hook up. Not sure what to do . DO you have the easiest EFI / NOS coupled system?

I just wanna know which setup would be best for a mopar 383 so I get do a fuel efficiency tune and have cruise control. I could care less about power, it's a 383, it's got enough torque to crush any asphalt I roll on. I want a daily driver with decent mpg, it's the original motor that my 70 roadrunner was born with.

Hi, What system fits the 1989 Wrangler YJ, 4.2 manual transmission?

Nice video Joe I’m looking at the sniper & the terminator x .302 ford v3 supercharger 12psi. Street car I got to the track maybe once a month.What do you recommend.

Hey I'm trying to do a sniper Holley 95 obs 5.7 do you know what Holley sniper system would fit on there with the transmission it goes on there

As a boat mechanic, would the basic 650 system be a good option to switch from carb to EFI in a marine Application? Does the wizard ask for shiz like tire size and gear ratio that would make setting up for a boat or a piece of machinery hard? Does it give a CEL output to rig a check engine light somewhere?

Not sure why I keep hearing this but you can control N2O with the base Sniper. I’ve got mine controlling a progressive plate system with no issues. It’ll progress the solenoids, do lean/rich cutouts and turn the system on/off by RMP & throttle %

I'm wanting to put a Sniper on my 5,3 LS. What do I do about ignition?

Hey Joe, this is hot rod over here in Gardena California. Do you know a place where I could have? Somebody dial LHarley super sniper 2:18 I’m not that very good on doing that.

HEY JOE , LOVE YOUR CHANNEL . SO NONE OF THESE HAVE AUTO TRANS LIKE 4 R100 FORD CONTROL ?

I have a 302 in a 73 bronco and I should run about 360hp. I want a street machine that I can drive on any highway. Super Stealth the best bet?

You make it sound so simple, easy and reliable. Have you commented on any of the hundreds of videos of people that are VERY DISAPPOINTED with their very expensive Holley EFI? Customers left stranded, sensor failures, etc.

There’s an 800hp system also called the x flow.

What would you recommend if I need 1150 cfm

What intake manifold do you recommend with this EFI system? A single plane or a dual plane? Do you recommend using a 1" spacer on the intake manifold?

Man, i bought a holley sniper efi kit for my 66 mustang and nothing but issues trying to get it to work. 550-511k model. Even holley can't figure it out. What a disappointment. Very frustrating.

Are these hp ratings at the tire 🤔?

What is the difference between the Sniper, the Terminator, and the Atomic? Are they for different performance levels?

The wizzard is my timing table go too… zero to hero with in 1500rpm!!

Do you still mess with megasquirt?

Well that sucks. No E85. Guess I’m stuck with a carb

I assume this would be a good fit for a blown BBC setup in a boat? With a kit that supplies enough fuel. These are about the same $ as two quick fuel carbs.

Doesn't the sniper 2 line offer a transmission controller

Can you run methanol with any of the sniper systems, would really like to convert our race car over to efi, currently running mechanical injection.

Man I misread the title thought it said Terminator and was making me nervous as I just bought one lol

I understand the idea behind your online classes for the EFI software tuning because I’m very close to committing to it but my main question or concern is exactly how far does the complete program take a’guy. Is it something a’guy is going to have a good idea on how to tune his hotrod Holley terminator x or is it something he could go out and tune a large amount of Holley EFI setups without much to any difficulty. My issue is what’s the point of buying your program if it doesn’t give him all the information he’d need to go out and tune nearly any Holley setup out there t-x, to dom and n/a to blown meth

Joe, I have a 67 Chevelle with a BBC 540 with a 850cfm carb. It has 767hp & 797 FT Lbs at the crank and I am still not sure which Holley sniper I should go with?

Will any of these EFI setups actually work on a bracket racing motor with a lot of overlap and not much vacuum in the intake?

I have a terminator tbi with the holley hp. Im trying to get it to start. I just put v5 171 in it I used the 3.5 handheld wizard. I cant get it to start

Hopefully you have or will touch on the 'self learning' lie when it comes to fuel and ignition mapping. I bought he base sniper for the self-learn claim for my 347 Windsor and now have to pay near as much again to get it mapped as I am not that experienced.

I wish they had a sniper with external ECU. Building a car with a super rare dual quad intake manifold that the customer does not want to modify by welding in port injector bungs. I set it up with dual quad sniper but am nervous about the horror stories of RFI issues once its on the road. I have been considering hooking the TB's up to a generic Terminator ECU as there doesnt seem to be any other good options out there. What has your experience been with the RFI issue Joe? Thanks!

Going back to a carb. I would rather work with voodoo and black magic than computer precision that has left me on the side of the road twice in less than 30 days on a very nicely installed system...

Can I put this in my 83 Buick radio 3.8 l no it's not a grand national

I currently run carb on my 454 but I have installed a tps. This is because my 4l80e transmission (tbi computer controlled) needs a throttle position sensor. Can the tps that is on these throttle bodies have the signal split?

Joe. What are your thoughts on the Sniper Stealth 650 having 80# injectors vs 100# on the standard Sniper ?

Every sniper kit should come with a person's favorite MRE. 😆 🤣

So now they have the new and improved sniper 2 and that’s what I bought

Just my 2 cents. I've worked on quite a few fitechs, snipers, and terminator x setups at this point and the sniper seems shockingly bad from a longevity and QC perspective. Of the local shops around me, almost none will install these systems for customers anymore because the failure rate is so high. Most recent failure for me personally was the spark circuit burning out of the first unit, and the replacement unit had wires pulled out of the CAN cable. Fixed the CAN cable made it run for 5 minutes all for it to die and refuse to run again. While Key On/Engine Off the injectors hung wide open and filled the intake with fuel. Currently converting that truck back to a carburetor for reliability. I still love my two terminator x cars, but I wouldn't trust the sniper to get me to work every day like I do with the terminator x.

I’d say save up your money today Edelbrock pro flow port injection

Wat are your thoughts on the atomic 2 I run that on my jeep with a sbf

Wait so you’re saying none of them are E85? I have almost 11:1 compression and I run E85 carb now but I’m looking to go EFI and twin turbo? So what EFI do I need for twin turbo E85? Shit!

Joes videos literally taught me how to not blow up my ls lol

Joe, it’s already installed in the car I just need the one with the computer. Can you send me to a good person of you if you know someone

Do you personally recommend the sniper? In the market for throttle body efi but keep reading bad things about reliability of the sniper. But also that holley has the best tuning software

We have one it's a nightmare on a 440 runs hot no matter what we do

Okay okay I want to add the water to the pool now. What is my next step, contact Holley?

I bought the super sniper stealth two years ago for one of my 440 Dodger trucks and the in tank pump set up and I’m looking at it still sitting on my kitchen table unopened 😳

Efi kit cost $1200-1600+ Fuel pump $100-200 Fuel lines efi -100+ O2 bungs installed $100 + Single plane intake $300+ Fuel regulator $100+ O2 sensors $40+ Dropping n Modifying tank to adapt pump on old cars $$$100+ This adds up quick.

Friend of mine has had nothing but problems with his

I have no confidence in the Sniper, Im having serious EMI and RF interference issues with this system, I dont trust to leave town with this system, especially for Ford engine owners where the distributor is right next to the ECU in the sniper throttle body, who puts a computer (ECU) right next to a lightning storm!!! plus I get RF and EMI interference in the sniper cable harness, total crap! I had to re-wire the sniper system due to sensitive to EMI and RF issues and its better but still an issue!!! plus the throttle linkage is too sensitive, throttle linkage is sticky due to poor design by Holley.

Be cautious of the sniper 4150 systems there problematic i had to replace all the sensors with ACdelco one's except the O2 that was bosch and holley's service support sucks i sent my sniper to holley first before i replace the sensors they had it for 4 weeks, 2 weeks in i call to see whats up they said its on the shelf and their going look at it , 2 weeks later it shows up in the mail no phone call or letter from them letting me know what they did to the unit so i have the same problem's just not as bad with the new sensors, (erratic and freezing) AFR'S i tried calling but tired of being on hold for 2-3 HR so i gave up im very disappointed in holley i will not buy holley again . (buyers beware)

Are these reliable though? Would you trust it on a long off roading trip?

go with an edelbrock pro-flo 4 is a better system

will this fit my 1989 geo metro?

These things are plaqued with reliability issues. I know there will be people here saying "I've had mine for x years and haven't had any problems" well, I'm not talking about yours then. Too many people have had these things fail within months, or weeks of installation, and I would like to personally see Holley make a few changes.

EFI come's with plenty of problems, it's not foolproof. $1200-$1600 for a low-grade TB system. Or just buy a $300+ - $500 carburetor, mostly ready to just sit on and run. I have seen test of slightly smaller carb's against bigger EFI's. Which develop more Hp and Torque. And almost always will bring you home, not leaving you sitting along the side of the road as EFI's can do. I wouldn't mind playing with these EFI's. But not forking out triple the money for less or equal performance.

IMO : Should have made a comparison matrix graph listing each units features and / or lack thereof, the long talking means the viewer has to remember, write down the spec, your comments about each system vs looking at a single picture with all the information

carburetor

Um, the standard sniper "can" control nitrous ! Yes I have done it. You can use the pc software to activate it.

after 3 years and like 100 h troubleshooting uninstall reinstal and more then 40h on the phone with holley , send back the unit 2 time that endup been replace each time, one month in a speed shop that charge me $1500 labor time , it never run properly,.. the carb feel like it been design by GOD when i put it back on the car..... before you buy,ask yourself....do you feel lucky?

Hekno

I got a sniper 1250. I opened the box, oohed and aaaahed over it - and threw it back in the box to try and come up with enough fuel pump to feed 3.5 pounds/second of fuel at 65 psi. Nothing I ever dreamed up for an electric fuel pump was going to make A) The 1250 Sniper, B) Me C) The customer, D) The 45 amp OEM alternator on the car - happy. Anybody want it? I think I paid $1800 for it in 2019...

Ive dealt with a lot of these Holley systems and I would rather have a carburetor any day of the week !!!! LOL !!!! There is too many sensors wiring injectors and blah blah blah !!!!! Too many layers to fail !!!! LOL !!!!!

Carburetor deliver the fuel your engine, cam, head flow and exhaust size it wants. After you run it on a dynomometer and the component changes needed. EFI delivers the fuel your system wants to deliver regardless. I have worked on, near or around like literally thousands of OEM factory EFI systems while only having to actually fix or repair 14 of these. The Holley EFI system is 1980 parts with software from 2003. Good choice! You want to go faster, empty you glove box, delete to HVAC system, remove the back seat cushion and seat back, then remove everything from the trunk. Now, go fast! ASE Master Tech