problem is when the revs go up to the limiter which happened for the first time yesterday then the car backfires and spits flames and misses like all hell untill i switch the car off and restarted it.... i darent try it again incase its gunna blow it up as it does not sound good atall..... only running 0.5 bar boost so cant be boost cut surely? its a stage 3 2wd cossie. any ideas as im petrified to drive it now