My car has been running like crap lately. It's got new plugs, wires, cap, rotor, tps sensor, and battery cables. It's been either leaking or burning oil pretty bad (about three-4 quarts between oil changes) since I got it (i never see oil spots so I'm assuming it's burning but who knows). Now for the past couple of months and it's getting worst as time goes on the engine has been really slugish at times. in between gear changes I can no longer "slam" into the next gear because it sort of hesitates between each shift. And if I drop it down a gear and whack it it'll start to pull really slowly and then it's like something unclogs and then you can start to hear the engine scream and it pulls like it should. Any ideas what the heck could be wrong?? Thanks guys.