Ok well...the other day I decided to remove my valve cover to clean it up and stuff and I realized I would have to go buy a new valve cover gasket so I did taht and put it on and everything...so I did that and Tightened the bolts...well I figured out I tightened the bolts to tight and it stripped some of the threads out inside my block so now my car leaks oil and smokes like a bitch cuz it leaks onto my headers...anyways so im fixing that problem tomorrow but I was driving it the other day and like every now and then it seems like my car hesitates when i have the gas pedal like halfway in...its not horribly bad or nething...someone told me it could be my fuel pump or my fuel filter..if I ran some fuel injector cleaner through my car would the fix that problem...or do I need a new fuel pump and filter...someone please help me out..tomorrow im going to buy a heater coil kit? to fix my threads and get some fuel injector cleaner..please tell me if that will fix it im really worried about it...ive never had this problem till my car started leaking oil out of my valve cover cuz I cant tighten my bolts all the way!! Please Help guys!