I have a mechanical Holley fuel pump feeding a 750 double pumper Holley. I have an inline gauge on the fuel rail and at idle it reads 10-12 psi. Isn't it supposed to be more like 6-7 psi? I won't idle and I'm assuming this is why. Too much pressure. Should I put a fuel pressure regulator on it? And if so which one?

I was looking at this one. Whatcha think? Thanks.

http://www.jegs.com/i/Aeromotive/027/13215/10002/-1?parentProductId=962875

You want about 6 max for a normal stock/mild motor. With ten to twelve all you are doing is pushing fuel past the needle and seat and that is what is more than likely causing your idling issues.


Sent from that vibrating thing In your pocket using Tapatalk

Do I need to run a bypass fuel regulator or just a one in one out reg. sorry not too savvy on the fuel regulator choices. Sorry for dumb questions.

I'm not going to say you need it or not, but I have three motors  (two that have superchargers) with just the summit brand regs with no bypass and they run fine.


Sent from that vibrating thing In your pocket using Tapatalk