went to start trans-am thats sat since early october and after finally getting it jump started it won't idle. i need to keep my foot on the gas or it surges and dies. i can set the idle with the pedal as low as 700 rpm, but as i let off from there it surges up to 1200 and back down, and when i back fully off it'll die. last time it was out i didnt have any trouble, took it for a ride for 20 some minutes and parked it. i let it run untill it got to operating temp this time, oil pressure was good and everything so i dont think it was a lifter leak-down type issue. from ice cold to operating temp nothing changed as far as it wanting to die on me.