Non lockup transmission for racing
 

I'm planning on building a 12v for my dedicated race truck now I've got my 3rd gen to the power I want. I recently got a lead on a cheap 46rh out of a 1st gen and planned on building it while I'm going through school. I know I can convert it to tcc lockup capable but my question is who has been successful with a non lockup converter in big power applications?