I'm helping my dad install a T56 kit from DD Performance in his Vortec V-1 Blown 97 Cobra tomorrow.
I think the following torque specs are correct:
Flywheel to crank: 63 ft/lbs
Pressure plate to Flywheel: 33 ft/lbs + 60* of extra rotation
Transmission to bell housing: 55 ft/lbs...