I just got this car, (95 Mustang GT, 5 speed)and I have run into problem after problem. My main thing is that the car has absolutely no power hardly at all and especially at higher rpm's. It starts out strong for about a sec then it starts lagging real bad. The car is all stock. As far as I can tell, except for the flows the guy I got it from put on right before I got the car. I have bought a fuel pressure tester and the car is holding 30lbs idling and 40lbs with the regulator unplugged. So I thought it might be a real bad backpressure problem, so I had the cats cut off and I even eliminated the smog crap under the hood, still no power increase. New K&N air filter, new temp sender and switch, new fuel filter. Still no break in loss of power.. So if anyone has any ideas please let me know.