I have a 1995 Nissan 240sx/se, I just got my time belt and everything changed cause it was messed up. Anyway ever since I've gotten it back it has been knocking under heavy acceleration. Any ideas on what it is and how I can fix it?

 

Maybe bent valves, could be timing was off and u messed your head up

 

did you do the work or a shop
if a shop take it back to them