boondocker

What is the stock stall for a '72 TH350 tranny? I'm upgrading my SBO 350 to a comp cam K42-222-4 (XE262H) kit) and wanted to upgrade the stall on my transmission as well...what would be the best choice for mild street performance?

70 cutlass s

Power range for that cam is 1,200-5,600 which the stock converter is around 1,200 which means you don't need a higher stall speed. Stock converter is fine. You will need 3.08 to 3.23 gear in the rear end to take full advantage of the cam.

boondocker

Excellent...would posi make a real difference here?

70 cutlass s

Posi is always better two tires putting power to the ground instead of one.