I have an OG 200R4 that needs rebuilt. I have done my BRF a couple of times due to forward drum shaft breakage so I'm getting good at it. I'm using Bruce's shaft now so that took care of that. My questions are, Will the OG case work with a CZ valve body? Should I use the CZ governor? Would a D5 converter Work well behind a 300hp Chevy? Should I use Bruce's billit shaft? I'll be using a GN servo, 10 Vane pump with hardened rings, enlarge the front seal fulid return, larger TV boost valve, and a B&M valve body kit. I also use a TCI kit 'caus it has the "blue" direct clutches. It is going into a 85 regal with 3.73 rear. Thanks in advance Phil.