Post the MAF table to see if there is something wrong with it. The way I see it you need 20-30 % more AFGS from 190 AFGS up.
Shot MAF is also a possibiity.
This is an aftermarket MAF element, the original delphi / delco is no longer available so calibration is suspect. I'm going to add a bunch to everything above 150afgs and see what happens.
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