i used to have the same problem.
Try adjusting the mixture screw... i think thats what its called. Its the screw on the manifold, on the same unit as the aac valve but on the other side. Wind that out a few turns, then start her up. If you still have trouble, get the car to temp and check your timing. I did this and new plugs and it fixed her right up.
However, it took a few goes to get it right with that screw, it progressively got better and better as i screwed out so i just did it one turn at a time. 2.5 turns got her perfect for me.
Mine was fully screwed in at first and therefore letting no air in and flooding i think... sounds like the same for you.