i am going built 350. supposed to handle 1300HP. then i can add a OD gear to the end of the tranny for street use...hehe
I've got a pretty built TH350 in my Impala. Put it in after the Powerglide wore out. It won't handle more than 600hp though. You will have to sink some money in to go to 1300hp capable.
I still have my PG here if I want to go all out race.....
"Racing is life. Anything before or after is just waiting." - Steve McQueen