Product Review: Holley Sniper EFI 2 - Is It Worth It? #productreview

If you have been following along with Project Dazed and Confused, one of the biggest improvements we made was installing the new Holley Sniper EFI 2 fuel injection kit. Now mind you, this wasn't your average car, this is a true classic muscle car, a 1971 Chevrolet Chevelle SS powered by a big block 454! We went with the full package, Holley Sniper EFI 2, Hyperspark ignition, Hyperspark coil, Hyperspark distributor, Holley fuel pressure regulator, and even a Holley Sniper air cleaner.

This video is a product review, an overview of what 2 Hacks Garage thinks of the system and what we determine. We are not professional mechanics; we are do it yourself gear heads that love taking on new projects and have a passion for performance. We went into this project having quite a bit of experience installing the original Holley Sniper EFI kit, but this is first Sniper EFI 2 kit we have done.

Is this kit easy to install? Is it truly DIY? Does it function as it should? Was it fun? Is it worth it? Did we learn anything? Watch and find out!

#holley #diy #musclecar

Product Links:

Sniper Air Cleaner:

Sniper Hyperspark Coil:

Instagram:
Jeffro521

@HolleyPerformance

[coreyrichardson]

Fuel lines plumbed to the throttle body are not dual feed. One is supply and one is return to tank. Throttle body has an internal passage to move fuel to front and rear set of injectors.

[timwindsor]

Awesome video JEFF. Thanks for sharing. Keep the content coming. Hope you have an incredible weekend

[RADMAN]

Awesome video thank you very much for all the details

[johannesschroff]

Had to use 20kOhm plugwires 2 workaround nonexistent shielding/emi protection on sniper 1. Watchout and be prepared for EMI due to poor electrotechnical design on any aftermarket EFI close to hi power AC sources. Hope this helps anyone in need.

[Turningwrenches]

Love the quick response no hesitate #snappy, definitely worth it 😊

[bioeddiefpv]

Thank you for the video was very helpful... Coming from a dinosaur of car performance wiring is the nightmare to me and not too bad here. Thanks

[MikeBaxterABC]

12:52 WHOA!!!! epici! .. I did not know the fuel was injected in a circle like that on every "barrel" (I am just getting back into hotroading as I'm retired, everything used carburetors back then)

The fuel rains down like one of those face expensive showers, you see on home renovation shows!!! LOL

[MikeBaxterABC]

3:18 ... EVERY install of Sniper 2 I've seen on Youtube uses an inline pun ... I REALLY recommend an in-tank pump, they run super COLD dipped in gas all day long! :) ..
13:13
I like the looks of Holleys intank stuff, but I really don't want to hole saw my old gas tank .. maybe when I get a new tank someday I'll swap up to Holey's pump.

For now I have purchased a decent "OEM replacement" rated pump by Quantum. .. it's small enough to fit in the stock hole, and on the stock fuel pump support .... and still keep my old fuel gauge! :)

[MikeBaxterABC]

2:27 With my age and eyesight?? I find the PDF online to be much better for reading just click the PLUS SIGN a few times make the words size you want!!

I've read over the instructions on line 5 times, but will load them into my old iPad when we start bolting it in!!

Can't wait to install the sniper 2, holley fuel regulator, and original CAT fuel filter set up!!... hopefully next week! :)

[MikeBaxterABC]

3:59 ... The Holley Power Distribution Model is BOSS .. I could not get one short notice but I WILL upgrade to it some time in the future, .... maybe if I get the Holley Hypersark system when I do. :)

8:39 :)

I JUST put a brand new distributor in a few months ago ...so i'm gong to keep using it for a year or so. :)

[Enjoytheinbetween]

EFI or LS, I don't know what to do. I love my 454 but hate dealing with carbs, I want to be able to drive it with no worries, better MPG etc. Choices, Most people I know who did the efi upgrade love it but still decided to upgrade to LS and they like it better.

[ItzTheDay]

With their HyperSpark set up, can you add and take timing out via the screen or do you still need to do that the old school way?

[MikeBaxterABC]

On the Sniper 2,

There are two Adjustments screws with green springs around them.

I really want to know what each screw adjusts?

Like the front one (towards the front of the turck) adjusts ?

And the rear most one is for adjusting the

[piewear]

Curious if you did a mpg compare. Im trying to get better all around mpg from my 396 stock motor. Thinking the Edelbrock pro flo efi may get better mpg results. Any input would be appreciated..thanks for the video

[chriskeller]

Why did you add the O2 sensor bung? It looks like there is one already in the header.

[dougwalker]

Any reason you didn’t put the O2 sensor in the bung on the header?

[Unknown-wbn]

I have a question I can't seem to get an answer too I have an Oil Pressure cut off for my Fuel pump will this cause issues when I install my Sniper 2 ?

[joshualawson]

Battery voltage reading continued to climb to 13.7 with the vehicle off at 11:10 do you know why it would do that

[MichaelBrown-ypeq]

? I notice that there is only one o2 senser which sounds good if you are running a single exhaust, but in a dual exhaust system there is only one bank of cylinders being monitored. would it not be better to have an o2 senser for each bank in a dual exhaust system.

[johnelliott]

Probably cheaper to get a good carburetor and run it, and would be closer to half the cost. I'm going to have to watch and see.