i have a 85 grand prix with a shot 200-4r, i am looking to swap it with a th-350 or a th-400. my question is... which should i use? also, the transmission's i'm looking at come from TCI, they have the auto/manual valve body. i am not sure what kind of torque converter i need. the ones that TCI sells have either wide, dual or small bolt patterns. I know dual is the BOP pattern, but which of the other two is the chevy? One last thing.... my GP has a stock 305, what am i looking for as far as stall speed is concerned? i don't understand it. does a stock TC have a stall speed? if not will it matter if i buy one with a stall speed since my engine is stock?
ANY AND ALL INFO IS APPRECIATED
ANY AND ALL INFO IS APPRECIATED