its good that you said to use a stock converter because it turns out that i called lunati and they said my cam can be used with a stock torque converter.
The reason im wanting to change trannys is becaue the one in it is a stock th350, and the engine is making more power than stock and the fluid is still red but with some black in it. i think the more power from the engine is burning stuff up in there. i dont know the diffrence between the th350 and th400, is the th400 better? and if it is, how much do i ahve to change to install that rather than the th350
Also the tranny is cooled by a 4 core radiator and i also added an aftermarket trans cooler that sits in front of the radiator.