For the record, really thrilled with the way things went. The high idle swing has been straightened out I believe. Currently the IAC motor is wired for the new style and it is the old style motor. The pin out is exactly the opposite from one to the other so when the ECU tried to close the IAC motor to bring rpm's down it actually opened it driving them up and the chase was on.
The Base Fuel table was pretty far off. Keith, don't know if you remember it or not but you were standing next to me at the bash when we pulled a plug to read it on the trailer it was bone white, indicating lean condition. That was mostly the IAC. When the ECU and the IAC would hit a spot they both liked it ended up rich so we were sort of chasing both ends of the spectrum. At least that is how I understand things.
At any rate, the guy running the show got things in tune pretty quickly and then did 6-7 pulls just to dial things in a little closer, little more timing, little less and so forth. Ended up wittling it down till it wasn't leaving any HP on the table.
Video coming up shortly.