i have a non-turbo 95 talon. the engine was rebuilt in it about a year ago. When i got the car out the shop. the engine vibrated when idling and at 4000+ rpms. it feels like its missing. The shop said it would do that until it breaks in. This has been going on for a year. I would have took it back but my wife drives the car and the year warranty is up. The car does not have the power it had when it was new. I thought that when you rebuild a engine it restores the engine. So, my question is, could they have mislined the timing belt? any input please.