Exploding Torqueflites

hey chris,
just a question or 2 on the sprag you mentioned. i just had a trans done with a 4 bolt. this has me concerned, whether i should have it all torn apart again and go to a (6). would you say a 4 bolt is not good enough, or is there a way to get along with it? i`m not a serious weekend racer. only once in a while, i like to go out and i don`t use slicks, just real wide tires. i don`t know, should tell you more about the car? maybe 600 hp,3800 stall and also, i have a csr shield. i hope i gave you enough on it to get an idea and thanks so much for your time. thanks again, gene in jersey