i put a new td 52u distributor ( 92 f22 accord distributor) in yesterday, it bolts up fine my backfire went away, no more stumble either..BUT i have to waaaayyy over advance it in order for it to run good..when i advance it its good to go, no overheat no cel nothing..my question is, is that bad for the car? it runs and drives good no problems with it at all so far i drove it prob 50 miles and its fine..also do you have a break in period on new distributors?