damn, might be a dumb question and i hate having to ask, but when i shift from 1st to 2nd and 2nd to 3rd while racing (legally of course) the car bounces.. i always thought this was my tires but i do remember a time when i would shift and my tires screeched but didnt bounce last summer. i never worried about it until my buddie told my it was my clutch but it never slips during normal driving. whats my deal? thnxx