EFI Comparison - Team Camaro Tech
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post #1 of 23 (permalink) Old Dec 27th, 18, 04:42 PM Thread Starter
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EFI Comparison

Not sure if I posted in the right forum regarding upgrading to EFI when I posted in performance. My car will have a fresh 350 bored 20 thousanths over 10.25 to 1, 1.94 fuelie heads, Voodoo cam, Weiand single plane intake, with pertronix ignition. I will R&R original fuel tank with aftermarket EFI ready setup. I currently like the Holley Terminator setup. Any feedback or recommendations would be appreciated.
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post #2 of 23 (permalink) Old Dec 27th, 18, 04:52 PM
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Re: EFI Comparison

I would highly recommend the Holley Sniper

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post #3 of 23 (permalink) Old Jan 14th, 19, 06:38 PM
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Re: EFI Comparison

I was looking at the Sniper as well but was suggested to look at MSD Atomic. About the same price but appears to me you have more tuning options with the MSD.


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post #4 of 23 (permalink) Old Jan 14th, 19, 09:33 PM
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Re: EFI Comparison

I just bought the new Edelbrock Pro Flo 4 that was shown at sema . Have not installed it yet but with Edelbrock I feel it's a safe bet to be a winner. My reason to go with there new kit was it's true EFI and comes with a distributor to control timing and a tablet to tune it
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post #5 of 23 (permalink) Old Jan 15th, 19, 11:00 AM
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Re: EFI Comparison

Quote:
Originally Posted by socal_tom View Post
I just bought the new Edelbrock Pro Flo 4 that was shown at sema . Have not installed it yet but with Edelbrock I feel it's a safe bet to be a winner. My reason to go with there new kit was it's true EFI and comes with a distributor to control timing and a tablet to tune it
I'll second the Edelbrock. It has direct port injection rather than throttle body which just seems more efficient. I would have gone this way but have decided to do a LS1 swap.

Eric
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post #6 of 23 (permalink) Old Jan 15th, 19, 12:39 PM
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Re: EFI Comparison

Iím interested in how the Edelbrock works out.

A couple of posts suggest part of the decision was the Edelbrock controls timing.

Just to be clear Holley Sniper also can control timing. Just did one on a SBC with the Dual Sync.

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post #7 of 23 (permalink) Old Jan 15th, 19, 12:51 PM
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Re: EFI Comparison

Holley Sniper. If you can afford it go with the upgraded model for better tuning capabilities. I know they make several models. They also make stainless steel gas tanks with the fuel pump and fittings for any vehicle. May be worth looking into it. Just give Holley a call.
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post #8 of 23 (permalink) Old Jan 22nd, 19, 12:06 AM
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Re: EFI Comparison

I am also interested in making this change. I am leaning towards the Holley Sniper or the MSD Atomic. Will either of these units work with the MSD Ready to run distributor I already have? Also would like to not have to utilize a return line. I believe this possible with the MSD unit.

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post #9 of 23 (permalink) Old Jan 22nd, 19, 02:01 AM
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Re: EFI Comparison

With Sniper you can keep your MSD distributor. You can also control timing by using an adjustable rotor. Instructions are included on how to do it. I installed several. Some we have control timing and some not. Havenít noticed much difference either way.


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Using the Corvette Filter/Regulator you donít have to run a return from the TB. You Eli need a return from the regulator to the tank.

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post #10 of 23 (permalink) Old Jan 22nd, 19, 08:06 AM
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Re: EFI Comparison

With the Holley Sniper you can use the MSD distributor with or without timing control. Like said above you will need the the adjustable MSD rotor to utilize the timing control function.You do not have to run a return line when using the Sniper. You can also use your stock fuel tank when using the Holley in tank pump/sending unit combination made specifically for the 67-69 Camaro. It has an internal pressure regulator that returns the fuel directly in the tank. It installs in place of the stock sending unit requires no tank modifications or the need for a return fuel line. This is the setup that I have been running with no issues in my 67 with a 460hp 383 stroker.

Any question I would be happy to help. Chris
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post #11 of 23 (permalink) Old Jan 22nd, 19, 10:41 AM
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Re: EFI Comparison

AH HA,that sounds like the way to go for me. I watched the video showing the timing modification & that looked to be beyond my capabilities. I'll check out the Holley in tank fuel pump. Would I just set the timing as I have it now with a carb & vacuum advance? Thanks for this info. Much appreciated.

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post #12 of 23 (permalink) Old Jan 22nd, 19, 02:43 PM
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Re: EFI Comparison

Yes that is correct just set your timing to your engine manufactures specs the same way as you would with a carburetor and your all set.

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post #13 of 23 (permalink) Old Jan 23rd, 19, 06:25 AM
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Re: EFI Comparison

Everything I have read and watched, the Holley Sniper EFI is the way to go.
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post #14 of 23 (permalink) Old Jan 23rd, 19, 06:59 AM
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Re: EFI Comparison

I'll be putting a Sniper with the Hyperspark ignition system on a 71 K10 this weekend - I'll let you know what i think. I was going to order the new Edelbrock Pro Flo4 but it doesn't support boost yet and the Holly Sniper does. The plan for the Camaro is EFI with a Procharger or Torque Storm so its going to end up being Holly Super Sniper and I figured I may as well have the same system on both vehicles for supportability/ease of troubleshooting ect.
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post #15 of 23 (permalink) Old Jan 23rd, 19, 07:49 AM
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I just installed a edelbrock gen 4 pro flo on my new 383 stroker. Works great. If you info email me [email protected] I just went through all the oddities no need for you to go through them

1967 base hugger orange 383 stroker
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