What do you guys recommend for a transmission behind a 383 with approx. 450-500 HP. A TH-350 or a 200r4? was gonna go with a 350, but have an option to trade for a 200r4. Thoughts? Info> all is appreciated. Car is going to a street car, used for shows, cruising around, getting attention and occasional race i am sure. No strip use, just a toy. Thanks fellas!!