200-R4 transmission behind mopar stroker

I am going to use a 200r4 in my `68 vert. My tranny guys says this is a great tranny and can be built to handle some good power. He the gear spread is better than the 700 and it's about the same size as a 350auto. I am going this way to keep floor mods to a min. I have a 518 on the garage floor and yes it is huge. I could care less what the haters says! Hot rodding has alwas been about the best performing parts in an old car. Besides who bitches about a hemi in a `32 ford!!