I'm building a turbo'd 4-cylinder for our '71 Yenko Vega (street/strip), and would like an auto with overdrive, and the 200-4R seems like a natural fit...I'm looking at *hopefully* 500hp with the boost turned up, and the car should be 2800 pounds or less...what's it gonna take to get a 200-4R tranny/converter to hold up? Any advice??