xa.fairmont

hey all i have a auxr8 engine in me ef futura have ripped injection off and running 600holley and weiand stealth mani.
about to put tunnel ram an x2 450 holleys on now the factory fuel pump on the ef runs 22psi with a return line to tank anyone used this fuel setup on a tunnelram? as late model roller cam windsors dnt have mech fuelpump openings on side of block.

skidmarx

aslong as u are runing a good reg it wont matter much

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TuffXR

I would run a Mallory 3 port return reg, at least that way you can bring the pressure down to under 7 psi at the needle.

xa.fairmont

cheers guys maybe thats what ive always needed a regulater even with one carb after the high presure efi fuel pump its always spat fuel out the tail pipe but i thought thats what the return line to the tank was for ill try a reg anyway 7psi for 2 450s u reackon

skidmarx

id say 7psi for each

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TuffXR

Yep for each.

toryman

Hang on, a carbied EF? Is that legal in NZ? Wish the laws were like that here if thats the case!

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xa.fairmont

yes toryman do what u want in nz tell ya wht late model roller cam injected v8s go even harder with carbs on them dnt know why always thought injecton was the way to go only thing is its uses heaps more fuel now. but putting a carb on a au xr8 engine is a mint upgrade especially in the higher rpm