Chris I have a 2010 gt500 with a 4r70w with a Mach 1 converter (stalls about 2200rpm) . I don't lock it at the track because its a single disk. I like the everyday drivability of the tight converter what would you suggest?
Thx mike
Sounds like one of our 258mm will be a good choice if the stock 11" is working good for you. A little looser, but still drive great with your torque curve. Can you fill out an Ask Chris form with all your specs and I can help you out.
Chris