Great testing Woody, you may be on to a soulution that helps me as well.

What is the outside air temperature and are you logging it to see the difference it makes? Im assuming you are, as you dont seem to forget many variables.

Im especially interested in seeing what difference increased boost(20-22psi) makes and especially in cold weather (35-50 degrees).

ps, your hitting 19.70 psi with your 178 mm pulley it must be COLD there. Why does it show TPS is only 90% open?