Holley Sniper EFI Conversion

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Feb 22, 2023 | 10:55 PM

jorwalt

Thread Starter

3rd Gear

Joined: Feb 2023

Posts: 3

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Holley Sniper EFI Conversion

I am considering buying a Sniper EFI kit for my 77' 460. Was wondering if anyone has taken on this project and would have any tips for me? some pictures and/or videos of the set up would be very helpful too.

thanks,

Feb 22, 2023 | 11:26 PM

440 sixpack

Lead Driver

Joined: Oct 2018

Posts: 7,871

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It's easy to install, I put one on a Jeep a few years ago.

It's okay, but I won't do another one. I think I can get better performance out of a 4V and with a lot less things to go wrong. I've come to the conclusion unless you can do multiport injection there's no point .

Feb 23, 2023 | 09:19 AM

Blackfoot Big Block

Tuned

Joined: Dec 2009

Posts: 448

Likes: 31

From: Park City, Utah

One of my very best friends installed a Sniper system on his multi-year early Bronco project. His attention to detail is incredible, and he followed the installation instructions to the letter. But the engine wouldn't run. He made multiple calls to Holley's so-called "Technical Support Department" and it wasn't until he finally got someone with a clue that the problem was discovered... The brand new Holley Hyperspark Distributor- was defective out of the box. He was very disappointed with Holley, and especially so with the almost non-existent support.

The Sniper system is a throttle body system. Edelbrock offers a more sophisticated sequential multi-port fuel injection system with the Pro-Flo. If I were installing aftermarket fuel injection, I would steer well clear of Holley and strongly consider Edelbrock

Feb 23, 2023 | 11:06 AM

77&79F250

Moderator & parts slinger

Joined: Feb 2007

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From: S/W Missouri, Polk county

Feb 23, 2023 | 04:36 PM

nevinsj

Cross-Country

Joined: Aug 2019

Posts: 64

Likes: 19

I put a holley sniper on my sons 67 continental with the 462 about 16 months ago. No issues runs good.

Mar 2, 2023 | 11:35 PM

Spike54

3rd Gear

Joined: Aug 2021

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I looked at all the problems that guys encountered with the Snipper due to the electronics all in the front bowl and ford distributor right there making all kind of electrical noise.
Found a new system manufactured in Tennessee called ACE’S . It’s electronics are located separately.
working on installing this system on my 1984 E350 motor home. Lot of hookups but getting rid of the hard startsup and all that vacuum line stuff.
wish me luck.

Mar 3, 2023 | 06:04 AM

77&79F250

Moderator & parts slinger

Joined: Feb 2007

Posts: 50,170

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From: S/W Missouri, Polk county

Cool find with the Ace's company, keep us posted on how it turns out.

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Mar 10, 2023 | 11:44 AM

Spike54

3rd Gear

Joined: Aug 2021

Posts: 3

Likes: 0

Will let you guys informed on my installation project with the ACE’s EFI . If I keep getting snow and temps below 40 degrees this project may take awhile.
so far I just have to get it wired up.

Mar 13, 2023 | 06:18 PM

#10

FiddlyThings

Mountain Pass

Joined: Jan 2021

Posts: 141

Likes: 46

From: Austin, TX

Quote:

Originally Posted by jorwalt

Yup, on my 1976 alleged 390 (probably a 360, I haven't actually verified).

1. When properly adjusted, which takes some doing, it's amazing in all weather conditions. Hot? Cold? It just works and always cracks quickly.
2. Holley's support for it is abysmal. Truly terrible. The forums are critical, and the #1 resource on there doesn't even appear to be a Holley employee.
3. Look for a local speed shop that works on 'em. I got so frustrated trying to get my config right, I took it to a shop - $75 and an hour later, it was perfect. Worth every penny.
4. Tanks Inc now has a dentside EFI tank with baffles and in-tank pump. I haven't done that yet but it's on the list. EFI hates going dry.
5. If you do go EFI, check out FatFender Garage's flip-out panel holder.

I absolutely positively would do EFI again. However, I would probably look very seriously at the competitors. If you need a new manifold, the Edelbrock looks pretty great.

Mar 14, 2023 | 04:01 AM

#11

Dentside Dave

Cross-Country

Joined: Jan 2021

Posts: 92

Likes: 13

From: Bottrop

I have put a two barrel sniper on my ´73 390.
After some issues at the beginning (the housing wasnt drilled correct so the TPS sensor would not turn from factory) it was a straight forward installation.
Startup and Idle was pretty much improved. Gas mileage more or lesss stays the same, but much better trottle response in comparison to the autolite 2 barrel.

I am looking forward to test this thing on my fresh rebuilt engine in a few weeks.