I don't know if this is a problem, i've never owned a car that has done this before. Well, let's just give a scenario... I'm cruising at like 3k rpms, then i push in the clutch and the rpms drop to about 700, then pick back up to about 1200, then it either sticks at 1200 for a little while or goes back down to 700. The car is warmed up and all that good stuff. Anyone have this problem before? Or maybe know what it could be?