Wow this thread went crap. Came in looking for gear choices with the same mods as the OP, and I am seeing people giving suggestions with Superchargers, Stall Converters, Big Tires, and everything in between.
Guy said he has an exhaust and intake. Wants to know best gear choice... For his mods, I say 4.10s. Of course with a blower you don't want that much gear, but he doesn't have a blower, so why argue?
Don't forget, I also said its my DD and not much track use. I'm thinking 4.10 are steep for a daily driven car.