Thank you for your help. I did finally locate the darn thing. It was way low in the rear of the manifold, almost impossible to reach. Not like most of the newer and even older cars I have worked on where the IAC is in plain site and easy to reach. This thing took me 3 hours and a lot bruised knuckles and a ton of cuss words to change
The real culprit was actually a breather hose that popped off that was beneath the IAC and even harder to reach. I finally got it and the IAC reinstalled and the car runs great now.
No more stalling and no more rough idle. Everything worked out great.
Thanks again for your help.