I tested it but nothing huge to tell about. The pressure on my cougar was at 49psi and when up as I began to rev it. When I excessively reved it the pressure started to go down. I really don't know what that means. Keep watching the post I will let you know when I rig this pressure tester up so I can see it in the car. I need to get a longer hose and some other misc stuff. Hopefully it will work so I can see the guage when the stuttering actually happens.

1999 V6 MTX Black Cougar

Jacobs ignition system, Borla dual exhaust, Sho shop y pipe and hi flow cat, gutted precats with MIL eliminators, IAT rewire, vitek ignition wires, SCA CAI with monster flow filter, Unorthodox racing pulley, BAT rear strut brace, Battery relocation to trunk, eibachs, KVR crossdrilled/slotted rotors, freedom design strut brace and Tuned S-AFC

Waiting to be installed:
svt engine with 11k miles on it/ fidanza flywheel/Quaife/energy suspension engine mount inserts.