[keitho64]

Hello

I am trying to find out what the experts feel is the optimal fuel pressure for Webers. My car is currently running about 5psi and I am going to test a Holley 12-804 regulator that is a 1-4psi regulator and try to dial it close to 3.5. I am thinking 5 is a bit much. Would you all agree?

Background info on the car:

I am getting popping in the exhaust on deceleration and when returning to idle. I have gone through all the valve adjustment, timing, float levels, pump discharge, balance etc. The car runs perfect with only this minor annoyance. It will idle steady at 800, pulls effortlessly to redline, will cruise at 2,500 or 4,000 without skipping a beat.

The car is a mild hot rod 2.7 configured as follows:
34mm venturies
57 Idle jets
145 Main
180 Air Corrector
F3 Tubes
BP7ES Plugs
PermaTune Ignition with Pertronix Ignitor.

Thank you,