Ive had em in since about august.Mr Sony, how in the hell does your converter stall at 1200? My current stock TH350C converter flashes at 1600 RPM. The lowest I have seen was the 4L60E that was in my 94 Z71 1400-1500 RPM, probably a stock or towing replacement. Do you have the 2500 stall and 3.42 gears in yet? If not, you will lose.
Stock would foot stall at 1200. It sucked. Flashed to around 1500.