ok. heres what i got. a 12a race ported with a holley 650 double pumper, R/B exhaust all the way back. still runnin stock fuel pump. i'm gonna get a new pump(not sure which one, probably a holley). but how much pressure should i be running? and how much gph should i get? easy question i hope.

 

I am running a carter street/strip pump 7 psi pump. It is on a 13B 6 port with the racing beat set up. I think the holleys can take about 6-7 psi. I am running about 5 1/2 out of my reg. You might need a little more than that.

 

How about my poor ole 85 the pump mostly makes it to 3 maybe 3.5 lbs and stumbles and dies or tries to die at high revs anything past 40k? stock engine how many pounds should it get? thanks

 

As of now, I have a 12a bridge (holley 600, rb full exhuast) and I run the holley red fuel pump @ 7psi. Haven't had any fuel problems what-so-ever.

Jonathan