I have a fmic, boost gauge, tt, and thats it I am set up w/ turbosmart recirc bov. on the belt way after 30 mins of driving in 5th my car will not go above 3500 rpm's and I can almost watch the fuel gauge decrease. The car stutters and jumps till I let off, then down shift and creep past 3500 I don't know whats going on ! any thoughts?