For the love of KITT help me

Hey guys
I'm at a track meet in Aus called powercruise and my transmission is being a bitch.
It's a 1997 pwm 4l60e with hd4l60e transmit and it wont hold 3rd on the dyno.
it also has an issue where on a little throttle it bogs down, and there's a bit of a vibration around 100kpm. it's 2.77 rear end with 2400rpm really.

previously the trans was a 95 lt1 and the tuner did something to fix it, but it might have fucked the 97.

can someone look at the tune and see if they can fix the transmission tune?

I just want one good lap.

sorry I couldn't attach the tune but check my threads for the 36lns file. Anyone that can help will be making my Knught Rider KITT dream come to life.