With 4.10 gears you aren't going to need much stall. Torque happens way down at 2000 RPMs or so with the little blower, even with a smidge of cam in it like you've got. 3000+ stall converters need not apply. You won't need it.

Lift on my cam is not much. Like .470/.490 with the 1.6 rockers I have on the motor. It's the cheap Summit house brand K1103 cam and a set of 1.6 ratio stamped steel rockers. Not a high tech valvetrain at all.