Well thanks for the info, I have been debating about what tranny since i put the crate in about 2 months ago. The jump from the stock 5.0 to the 290 hp 5.7 made me realize the limits of the tranny, not that it has a lot of hp. I also considered a 200 r4 automatic in it since i really don't pull anything since moving to AL from OK. There are so many options! I am just looking for something I can throw under there with my dad when I go home for Thanksgiving. My guess is a standard would be the best shot at success.
Hope you get your project completed with success!!