i just got my fuel pressure guage installed and noticed that when the car goes into boost the fuel pressure will rise to about 70 or 80 then it bounces around like crazy from 40 to 80 and its all over the place need suggestions on what could be cause this also do you think it would be ok to go with no fmu and a adjustable fuel pressure regulator mods are full exhaust, trick flow intake, 70mm mass air , 30# injectors walbro 255 hp pump novi 1k will be putting the f150 pulley back on tuesday.?
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