i have a 91 civic with b18a1 motor in it and i have a b&m fpr on it. when i set the fuel pressure, do i set it to what i want it to stay at idle with the vaccum line on or off. my friend who helps me with my car set it to around 48 with it on which is around 58 wot right? my motor has b18b1 head,crower 402 cams, crower vlavesprings and retainers,jdm 4-1 header,blox intake manifold,2.5" catback exhaust,testpipe,cold air intake,xenocron chipped ecu, xenocron 255 fuel pump, and zex nitrous kit. my friend said that where he set it was good. anyone have any opinons?