I'm not very mechanically inclined but need a little advice. I was given a 93 SHO, automatic, good shape but running a little rough. What i mean by this is it seems to hesitate when driving. When i'm doing about 35 and start coasting, the car seems to start jumping. when i press the gas it goes away and accelerates. this happens even when i'm doing 65 on the freeway. seems to do it in low RPM's. Timing belt, throttle sensor, fuel injectors? i know a lot of work has been done on the car in the past year so it doesn't need a lot of work. any advice would be cool. thanx.