Who are you going have tune these AEMs?? How do they feel about it?
I remember yrs ago Jr had some issues (breaking up, ect) with the AEMs but he was able to solve it. Pretty sure his was the cam sensors or something like that where he had to move them around alil and do some slight mods(shave down the sensor)
Id have Crystal explain what he means by erratic cause if you have the heads clayed you should know how much AVCS you can run.
What makes you wanna run this ECU in the first place? If you want to run AVCS and have a stock like driving car I'd get a AP and run speed density if needed. Id only run a AEM EMS with with a high HP build with big cams.....which obviously would be non-avcs.