C-4 Road Racing Trans
I would think a tranny for this would really benefit from roller thrusts absolutly everywhere due to loading going both ways from acceleration and engine braking.
Do not use full manual reverse valve bodies, no engine braking in 1st gear.
PA's new ultra deep pan and a big-ass cooler using the pump mods to get more oil thru cooler.
Converter might be interesting, enough stall for good acceleration from a standing stop but good hi rpm lockup would be more important.