can you use EFI Units with a 426 HEMI with shaker?

[Riley Wellnitz]

I am wondering if anyone has done this before and if so what modification is required. Some day I would like to put 2 EFI 4 barrels on to a 426 HEMI and I was wondering if that is possible?

 

[6PKRTSE]

Yes you can. Anything can be modified to work. Hell, I modified mine to fit a high rise tunnel ram and two 1050 Dominator Holley carbs with two Nitrous fogger systems. Obviously, not stock or factory.

 

[Chryco Psycho]

I agree yes it can be done but the shaker base would need to be modified to increase the size of the openings into the throttle bodies .

 

[tonysrt]

I have the shaker base on a crate Hemi with the Edelbrock pro flow 4 and the air cleaner base fit perfectly on the throttle bodies. The only thing I had to do is raise the base because of the linkage was too high for the base to fit down on the bodies. All in a 71Cuda with all after market parts, hood and shaker assembly.

 

[moparroy]

I see Holley now makes one that is 4150 form factor

 

[moparroy]

I see Holley now makes one that is 4150 form factor

 

[ignition1]

The Holley Sniper Dual Quad system will mount up to a stock manifold (and Edelbrock dual quad intake) with no modifications.

The shaker base plate needs to be the AVS version to fit the 4150, the stock AFB version the carb holes are too small.

The AVS (Edelbrock/4150 version) will need modification the front area where the front fuel rail cross over tube is, more exactly the 90 degree fittings on the front carb stick too far forward and hit the under side of the base plate (first photo). I used a hammer and dolly to push the metal up to clear the Holley fittings.

Once the metal is pushed up a bit to clear the fittings the shaker system fits