200 for a mostly stock.Under 750 HP. lower 1st gear higher high gear. A BOP 400 case. short tale is not a easy thing to find.
Lonnie at Extreme Automatics or Dave do really good work on 200
I concur. For a mainly stock car keep the 200 & get it rebuilt(if needed). That extra gear will be nice & takes a decent load off of the engine on the highway.
there will be people all over that like a Duck on a bug making big power.You have all the trimmings to put a 400 in his GN. Nice but not needed in your car.