well hardware wise if youre not leaking anywhere and your MAF and all other sensors are in working condiotion there should be no issue besides your tuner.....i would try to reflash a stock file and start over making sure you knock the VE and MAF tables out first. BTW i have tourqe and HPT thats why im telling you not to rely soley on tourqe as half the time its inaccurate for things like fuel trims.