What should the fuel PSI be with a stock regulator?

[1bad67sbf]

my 92 is running super rich and I put a gauge on the fuel rail and im getting 44psi @ idle and 39 during a quick rev to 4k.

is this to high?

 

[f8tlfiveo]

With the vac line off I think it's supposed to be 39 or 40..

 

[jrichker]

Check fuel pressure:
The local auto parts store may rent or loan a fuel pressure test gauge if you don't have one.
Disconnect vacuum line and check it for evidence of fuel present on the line. If you find fuel, the fuel pressure regulator has failed. Cap the vacuum line and stow it out of the way.
Connect fuel pressure test gauge to Schrader port located just behind the alternator.
Turn the ignition switch on & start the engine. Observe the pressure : you should see 37-41 PSI at idle.
Turn the ignition off, reconnect the vacuum line and disconnect the fuel pressure test gauge. Watch out for squirting gas when you do this.