This is what I would do:
1. upgrade rearend gears to 4.10, Eaton Posi
2. Yank SS3800 2.7 STR Torque Converter
3. Transgo shift kit #3 washer
4. TCI SF29 flexplate
5. B&M 24K super cooler (transmission)
6. B&M 3 quart deep trans pan
7. NOS 75 wet shot.
8. Delete Torque Management, and adjust shift points (PCM)
Then go out for a drive