A definite yes on stepping up to the 7/16" studs!!! Once you get the studs, some good rockers (I like Comp Cams), and the correct pushrods and guide plates as Pat suggested, might also want to stabilize all of it with a good stud girdle..... Big blocks like big cams, big cams take big spring pressures, big spring pressures take a strong rocker, stud, pushrod, and girdle. You don't need it all, but it sure does give some added longevity to the valve train....