It’s in the pump, fuel pressure should be 50 to 60 lbs.

 

Checked with fuel pressure gauge today and with the fuel pump primed, 3 psi. As soon as the pump stop, pressure drop to o psi in 1 seconds! Takes about 6 or 7 cranks to start and for the first 2 or 3 seconds, the pressure BUILTS up from about 21 psi and tops off at 41 psi in about 5 seconds. So runs rough on first seconds when started but fine afterward. So ordering the AC delco from rockauto Fri.

 

Oh yeah... After driving, pressure is 50psi but when shut off pressure drop to o psi in about 15 seconds.

 

Thanks for the follow up, yes the fuel pump is done.