J20A Engine - Measure Fuel Pressure?

[fixkick]

I have no idea at all what car that is nor that custom setup
on a stock car , that return line blocked (or pinched and keyed off ) if the pressure does hold now, that is hard proof the FPR leaks.(with no vacuum)
but that car is not stock.
the slow leak down only allows, 2 things to be better
faster restarts
and to see if the injectors like,. (and dont in your case)

happy holiday!

I received the parts and have them installed. Perfect fit!




Next question...
With the pump on I set the fuel pressure to 35psi (engine off). As soon as the pump is turned off, the pressure instantly drops to 25psi. Within 60 seconds it goes down to 0psi. I thought the system was to remain pressurized (for a least a minute) when the pump is turned off? I checked the system (hoses) and did not find any leaks. Pinching the return line...the pressure remains at 24psi for 1 minute.




I'm using a Mallory 4305M FPR...