Originally Posted by bdrummonds
The factory fuel pressure is around 55PSI +or- 5psi. with .023 shim I was idleing at 70psi, but could drop the psi to 30 when I got on the loud pedal.
I consistently hold 68-72 psi. I have not seen it go down very much at WOT. Like OP said ~5psi, depending. I would sure change it and keep the old one as a spare.