100% MAF first w/LTFTs then VE w/CALC.VE, or is VE changed the same time as MAF?
How are LTFTs applied, do you have a calc_pid?
Did you change the O2 switch points before using LTFTs?
Its fun to try to hit those high MAP areas @ mile high isn't it.
At most I am able to hit 90kPa but only when I go down hill.