SD tune im at the end of my rope!!!

[Dran714]

2004 GMC sierra 6.0 222/225 Howard Cam.
So I gutted my cats and went to a speed density OS which has enhanced Ve up to 105 kpa but when im in WOT and up into 105 kpa its commanding 4 AFR truck falls on its face and sometimes stalls, ive disabled COT,PE, everything I can think and did notice the flow rate vs kpa injector tab only goes to 80kpa could this be throwing my ecm into the problem? When im logging and special function command like 13 AFR it runs great pulls hard all the way up threw 105 on the scanner!!! ill attach latest tune and log, thanks Darren P.s ive tried 2 stock MAP sensors same thing, surely my cammed 6.0 cant be maxxing out a 1 bar map??