Originally Posted by GMPX
There is more timing tables than those you listed....feel free to explore ;)
Also, depends on the year, earlier O.S's (2000 etc) had less than a 2006 vehicle. Torque reduction can cause weird numbers.
Also, don't forget about the spark DMA PID's.
Yes you can overide timing in the bi-directional control panel.
You can fix the timing at a given number or add/subtract timing from the final run spark value, good for doing what you want to do, just throw a few degrees at it without relfashing whilst on the dyno.
I know another method that will work great on the dyno, but I can't say too much yet :secret:
Cheers,
Ross