AEM troubles
I didn't know if this would be helpful to you guys but maybe just as a reference,,but here's a couple stock 6.1 timing tables.
NOTE: Factory PCM use 2 timing tables, one for Part throttle(14.7 A/F) and 1 for WOT; kPa is Y axis
6.1 09 6Speed WOT Timing
6.1 09 6Speed Part throttle: