We put a 2400 Precision Stall in a 2010 Camaro and I re-tuned the T43 with my typical settings but I am not sure if I am missing something special that has to be done for TC changes such as slip times, etc or if these are even possible to change.

When cruising at 1/2 or 3/4 throttle around 4000rpm the car seems to shutter almost like the TCC is locking/unlocking.