Big Red Z28

iTrader: (4)

So when I start the car if I don't keep on the gas it will stop running, I need to hold it around the 2,000-2,500 rpm range till the engine gets up to normal operating temps then it will idle fine on it's own while in park, when I put it in reverse or drive it stops running.
This is a heads/cam 4000 stall 01 Camaro, I have also replaced the IAC valve and TP sensor, checked for vacuum leaks.
Any help would be much appreciated.