sorry yea just the rear o2 was deleted, and yea did a bottom end swap... but it ran like a charm/champ for the first few month *yea i deffitnly use the power of that supercharger alot* and it just slowly developed this issue started out very slight and random, to constant and cant even hit half throttle..

without the supercharger belt on its smooth runs perfect no popping... so i dont beleive its any issue with the block or the heads.. its gotta be a sensor or something.. :s