Good solid assembly, I would add a clutch to the direct pack, dual feed the directs, and that's about it.
You are borderline for needing a billet input shaft, but with the light weight and turbo's coming on smoother than a N2O combo, you will probably be OK.
As a point of reference, our Stage 2 would work but if it were "my" car I would do a Stage 3.
GM Racing Automatics from the company that designs the parts, not just another parts assembler. www.jakesperformance.com