Was wondering what size torque convertor, stall for the 200r4. I have recently purchased used from a fellow Gn owner. He had it connected to his car and recently showed 625 hp on a dyno run. It is supposedly enhanced with some go fast parts. I am going to install it in an 82 El Camino with a 350 SBC which I might stroke to a 383 someday. I will be running on the local track and would like to see 13's . I should add I also purchased his 3.42 rear end. Thanks for any info.