7 1/4 stock 400

My Swinger had a 7 1/4 in it for a year behind a 400 horse 360. It had 205s on it and ran 12.90s with no traction. It had 3.23s in it and i eventually broke it. Total hamburger when i took the cover off, it look as though the carrier broke. My friends and I still laugh hysterically at the beating it took, I even ran it with some 245 hoosier Dirt Bozz tires on it at a Mopar race at Speedworld in Surprise Arizona. But I think that rear was the exception, I would say that it wont tolerate that 400 very long. :burnout: