What's your overall HP goal?
Before anything else, I would drop the trans pan, tighten the apply bands up, and up the line pressure. Then you can also adjust another screw to change shift points slightly to make use of the 366 spring. That is if you haven't done so already.
5x12,5x14,6x16s are gonna get you HP and a smoky beast but will give a good hit.
I just bought a 63ish mm turbo. Gonna rebuild it and put it on with some 5x14's or whatever else I can pick up cheap.
