throttle angle error copperhead

[13guytt]

Working on touching up an FRPP file for an 11 GT500. Car is stock motor, boost a pump, E85, upgraded supercharger with a monoblade TB. It had twin 65 TB data and was throwing wrench lights on decel after WOT. I put the proper TB data in place, and it seems the wrench lights have subsided but i am still seeing what I feel is too much ETC throttle angle error. -6 degrees as rpms go up through the pull and maybe as high as -20 for an instant on throttle close. I've used up my meager resources and am unsure how to proceed, would this be in driver demand, or tq and inverse, or something completely different? Just trying to help a buddy out and get this thing improved. Thanks!

[13guytt]

Any help here guys? Thanks