I fitted a leak valve on my acuator solenoid to upp my boost. if a take it past 14 psi my car tends to shake about back and forth. the power goes into an "on off" rythem. i personally think that it could be A: there is not enough fuel going through even though i have a power boost valve turned all the way up. Or B: the amount of pressure is blowing the spark out. I have yet to try checking and shortening the electrode gap. has anyone experienced this problem? if so what did you do?