So I tried to contact TCI through the website but had no luck. Today I spoke with a technician at Boss Hog torque converters, who also make the Summit branded converters, and he recommended a 10” converter with a rated stall of 2800-3200. He estimated it would give an actual stall of about 1700 with my setup.

Am I correct in assuming that one rated at 2500-2800 rpm would stall at about 1500? What would be the difference in how they drive on the street?