got a 00 GTP and i took out my throttle body screen a couple days ago seems to run fine but if i leave it in park for a long time like waiting somewhere i notice every once in awhile the engine will rev a lil by itself is this bad i know that screen straightened air for the MAF but i noticed way better throttle response with it gone ....other than the rev and a little bit of shake she runs great. do i got anything to worry about? and as for the shake i had that before i did the screeen removal, what could that be? its when its hot i get motor shake is this normal? thanks any help would be good.