okay..so at first i thought the reason was for my car to be idling high and flat spots on the powerband around 4k rpm was the ACIS system..checked it..all good..then i though it was a BHG sense the gurgling noise and the white smoke from tailpipe..checked it was also okay..transmission could do this? i heard a faulty modulator valve could cause it not to shift or poorly shift in a auto trans, also it could cause the raiator to back flow into the engine and cause a white smoke appearance from the tailpipe..is this why it tops out at 110? i mean all the power is there in the engine..i guess it could feel like a flat spot if the trans doesnt shift right? is this possible?plz correct me if any of this is false..thanks in advance