Heard back from the tuner, says ps2 maxes out at 20-22 up top at sea level. So me at 16-17 is just my discount for being at elevation. That explains why wgdc is maxed too.
And timing corrections at 3-6 are plenty common, especially with my crappy 91, even on stock cars.
Sounds like I'm ready to rock and roll once this damn snow clears up.