So a few days ago i Tryed starting up my car and it starts but badly misfires, in order to keep it from stalling i had to keep my foot to the floor and it only would rev to about 3500 rpm while still misfiring. I know some things that might have caused problems but im not sure. 1) It's been sitting for about three weeks with no ignition wires, or air intake, just the throttle body is there. about a week and a half ago it rained hard all through the night. i was wondering if possibly i have bad plugs because they were possibly soaked or if i got water in the engine because there was nothing guarding the throttle body. 2) When I started the engine for the first time in 3 weeks the serpintine belt wasn't on b/c i was replacing the a/c motor that mounts on the front of the engine block. could this have possibly caused the timing belt to slip? Theres definetly some kind of problem b/c it stalls in idle and like i said only does 3500 rpm whith my foot in the floor, and ontop of that when its doing 3500 it misfires so bad that if you didn't know it was a car you would think it was a harley because it was a farely loud rumble with the misfire kicking in to make a harley type sound. when i went to put it in reverse to see if it would move in gear or work any better it just rolled a few feetr, lost power, and stalled out. after that it wont even turn over. any ideas if its the valves, or something else???