Holley carb ldle problem, mind of its own….

I have a 600cfm holley carb that is almost new. Carb has been cleaned and the problem I have been haveing is it will not idle most of the time. I tried the idel adjustment and it works when it is cold but when it warms up it is iding too high. When I set the idle right after it warms up then it wont stay alive when it is cold again. Am I missing something here? Need help.
Author: Mopard