Thanks for the responses. That's funny that you mention the clutch. I just had the clutch, along with master and slave cylinders, replaced about 2 weeks ago. I also had the flywheel resurfaced. I went to Pep-Boys to get it done, I guess that was a mistake. Should I just take it back into the shop and have them fix it? The thing is that it happens so sporadically and I'm afraid to test the engine for it again. Come to think of it, with the money I spent, I could've just bought that Centerforce clutch and Fidanza flywheel I wanted and maybe I could have avoided this whole problem. But P.B. gave me a great deal and dropping that tranny and doing the install would have been pretty difficult! BTW, does anyone know if some shops do payment plans? (I.E. Turbo Kits). Peace.