I currently have my fuel pump (holley blue) pumping all the time when the car is on.. no fuel pressure regulator. What are the downsides to this? Should I invest in a fuel pressure regulator? Any recommendations.. would the OEM ford one work?
ryclef331 said:If you just let the pump go unregulated, you'll run TOO MUCH fuel pressure and the car will CONSTANTLY run rich. You NEED to have a regulator. its goes
The regulator has an orifice that opens and closes to restrict/regulate how much pressure the motor will see. on a carb'd car you need about 8-9lbs of pressure at idle. If you're seeing 19lbs unregulated, you'll never get the carb tuned....
ryclef331 said:slap it on there (with a gauge of some sort of course) and set it to whatever the reccomended starting pressure for your car is....probably between 7-9lbs. Tune from there.