if it was a billet triple disk then i would say so but a billet single i wouldn't think so i saw some one post on here what the stock input shaft was rated up to i dont remember exactly but i think at least 400 hp

it jsut depends on the driver.... if you goon it once and flip the swich prematurely you will blow the input..... if you can swing the 750 for the shaft i would highly recommend doing it