Torque Convertor stall speed

I need help figuring out my torque convertor stall speed for my C4 and 3.73 gears on a 26x8 soon to be a 28x10. The car specs are as follows:

Engine - = 331 SBF

Horsepower? = 448 @ 5700

RPM of peak HP? = 5700

Torque? = 419 @ 5600

RPM of peak torque? = @ 5600

Any power adders? = Supercharger - Paxton 1220 SL - approx. 7 - 8lbs boost at WOT

Duration of cam @ .050? = 212 / 224 - .512 / .512 Lift Here are specs: COMP Cams - Cam Details

Shift RPM? = @ 5600

Rear end ratio? = 3.73

Tire height? right now 26 x 8

1/8 mile or 1/4 mile? = 1/4 mile only

Best ET? = 11.46 @ 121mph with stock T-5

Best MPH? = 122

Car's track weight w/ driver? = approximately 2700 lbs


Any suggestions? New to the C4 world..........

well I have no way of scanning it in. How do I tell what RPM it is stalling at . It climbs consitently from 2500 rpm up maxing at 5700 rpm. there is no plateau until then.

Not a lot of C4 users on Stangnet?