9000th01ss

iTrader: (10)

I'd get rid of torque management 100%

If it was my car I'd think that was the problem, you can see spark retard happening with throttle. And it doesn't want to upshift under wot power because it's going to cut timing.
I don't know how to word it but if you have a 4L80E I do not see why you still have TM, yes some is removed but not all. I could tell by looking at the scan- stab throttle timing dips. Trans shifts when timing dips. Let off throttle timing jumps, trans shifts.
Make timing not dip, get rid of TM.

MUSTANGBRKR02

iTrader: (91)

TM is disabled in the trans section. Am i missing it or is there more?

9000th01ss

iTrader: (10)

This is torque management also, it needs to be zero'd out.

MUSTANGBRKR02

iTrader: (91)

i removed all TM and will give it a try tomorrow thanks.

Rolemodel

Your direct clutches could be going. How is going into reverse? does it hesitate at all?

9000th01ss

iTrader: (10)

I think if the direct was going it would shift and slip, by what he's saying it's not even trying to shift and he's working with a new set up, and a converted VCM for a 4L80E.

MUSTANGBRKR02

iTrader: (91)

it's not the tranny. After i zero'd out the MPH it shifted WOT. It's been wet so i haven't been able to try it yet.

Cool28

iTrader: (2)

Ever figure out what caused your problem? I'm having the same problem. Just replaced the clutch pack and it holds but still doesnt shift at wot.

Firebirdmuscle

iTrader: (16)

Your wot shift speeds in the " full throttle" speed table needs to be the same as your "100" on the normal shift table. Make sure those are matching and try and see.