well if you only have 20 lbs of fuel pressure on stock injectors, then that is why your car is not idleing. My guess is that you have the fpr hooked up incorrectly. make sure you have the regulator "out" line running to the return line, and the "in" line running to the fuel rail. If it is hooked up properly, then try turning that allen head adjustment screw in more. If the pressure doesn't budge at all, then I would bet that you have a faulty regulator.

Matt
1995 Eclipse GS
2.0L, S16g Turbo, 8 Injectors, 26psi

1998 Eclipse GSX
2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...