fishy68
Tyr Fryr's Inc.
Ok I'm about ready to fire up the Cuda and I got the Holley blue pump all wired up and plumbed to the carb and have a pressure gauge and regulator inline. Back when I bought this system I talked to Holley's tech line and they told me to set the regulator at 5 to 5-1/2 lbs for the 750 carb I'm running. (I thought this sounded a little low but who am I to question them, they built it.) Anyway I put power to the fuel pump and no matter how much I backed the regulator off I can't get the pressure below 9 lbs. I'm sure I'm turning it the right way (I'm backing it out) because if I go the other direction (screw it in) it goes higher. Now I'm doing this with the engine shut off. Does the engine need to be running to set the pressure or did I get a bad regulator?