I installed a LT4 hotcam and 1.6 RR on my 1994 LT1 Camaro. I have my pressure around 46 psi (with ignition turned in the on position) but the car is running very rich. Bogging and no power. What pressure are people running with the hotcam? I have a custom tune with PCMforless and also have headers, UD pulleys, ram air, 3" catback. I nevery had the car on a scan tool yet. My buddy is coming up tomorrow to check that and reduce my pressure.

 

I believe with the PCMForLess tunes you just keep the fuel pressure set at the stock setting (43.5 psi)

 

Yeah all trying to tune with fuel pressure will accomplish is making your pcm tuners job much more difficult. Put the stocker back on or at the very least return the pressure to the stock 43.5psi WITH VACUUM LINE DISCONNECTED and plugged.

 

Ok so I should disconnect the vacuum line going to the fuel pressure regulator and keep pressure around 43 psi? Will disconnecting my vacuum make the car run better?

 

What he is saying, is you check the pressure with the vacuum hose off the regulator. Normal operation is with it on.
If you are running 46 psi at idle with the vacuum line on, that's way too high.