ive got this car running decent but the idle is erratic and stalls. ive changed and clean the IAC,TPS,O2 sensor,temp sensor, and new MAF. i pulled the super ram off and resealed it because i found some vacuum leaks, and it got better. but still the idle is erratic and stalling. yesterday i rigged up a way to pressure test and there seems to be a leak at the throttle body shaft near the return spring. how much air should be able to leak from this? i was using 15psi of air but could not get more than 6psi into the intake due to the leak? im wondering if this is my idle issue?