first of all Im glad there are a few out there with the AEM also its a very powerfull system thats been proven elsewhere in many different applications thats why I went with it.
So far I am tuning myself the aem maps are useable. Biggest thing to save you some trouble is switch to the gm boost control solenoid its very stable in my car now at 15psi even in a bleed setup. I am actually running that now with the base map modified to work with the gm solenoid. Base map is very very rich. Thats where it needs most of its tuning. I see 12:1 and richer with the base map which is not good.