Well i put a 12lb supercharger pulley on yesterday, replacing the 6 lb pulley. Holy crap is the car mean now, but i have some questions about a few things. It seems like there is some sort of limiter, 1st gear boost stops at 9, second stops at 12, third stops at around 16, and then there is fourth... Fourth gear the car stutters really bad at WOT and the check engine light comes on until it hits around 12 lbs and then it feels like something kicks it in the ass and then the tires break loose. My air fuel ratio gauge seems to think im not having any problems but something has got to be wrong. I used the original belt for the 6lb pulley and it doesnt fit on there very tight, but it works...could the belt be slipping and causing this? BTW i know its to much boost to run on stock internals but its around 20 degrees outside so that definately helps. Any suggestions are welcome, thanks.