it been a while and i think that i got it. the y7 is revving up at idle like its it the iacv, changed it. and i got a obd2 ecu scanner and it's saying that i'm having random misfires. the last thing that i did before all this happened was put a y8 tranny on, and switched to a skunk 2 IM, put on another y7 head. the only thing i can think of that would give me all of those problems at once would be the crank sensor, but i STILL haven't gotten my things from my move back to the US, so i can't get under the hood of my car and see for my self and i refuse to take my car to a shop so they can rape me for something that i know is going to be simple. can someone please help me out.