Performance Converter

I'm very happy with my 8" ATI Treemaster with my 408. You have more cam than me but regardless, those tires don't stand a chance with a 408. At the track, my trans temp is only about 180 at the end of a pass using a separate cooler without the radiator. Drives pretty normal putzing around until you drop the hammer...then hang on. As others have stated, call and talk to the converter companies. You'll get what you're looking for if you provide them your expected power/tq and planned usage.