If/when I do, I will use the Keisler bolt in kit. I'll probably go with the TKO-600. Not sure how much torque my 416 stroker will put out, so it may be slight overkill. But I like the gear spacing on the 600 better, and it's only a couple hundred more than the 500.
Are you going to use a bolt in kit, or cobble something up yourself?
