73 Duster build named Fred

Is your regulator pressure moving around still ?

Yeah, it is odd. It’s at 3psi, I adjust it to 5.5, make a pass and it goes to 10+ so I adjust it back down to 5.5 and it holds so I make a pass and it’s 2-3 psi again. It’s constantly moving in the same direction that I adjust it as well. I’m going to replace the diaphragm in the regulator and replace the gauge before next time out. Voltage to the pump is solid and the filters are clean so I think I’m on the right track.


I’ve had this happen to me, but only with those cheap assed Holley regulators.