Just got my SVT back from my Ford Dealer. After interpreting the data from the "black box", the Technicians determined it to be a slow response idle problem. With that they replaced the IAC valve assembly (FP# CX-1707). I am told this is different from the IAC Valve which they previously replaced. That replacement did not cure the idle pulse/stall. I will post again in a couple of weeks letting you all know whether this was a fix for me.
