OK I don't have a service manual on this it happens to be mine. What is the fuel pressure on an 01 n/a 3.8l regal supposed to be.I have about 45lbs and 60 with vacuum unplugged. mine started running like crap this weekend and I changed the filter(needed it) and is still runs bad. no acceleration, pops,farts just won't go.next step is plug wires tomorrow night.