The 261/Corvette cam is ground for solid lifters. Somebody else might be able to tell us if there's a performance ground cam with hydraulics for stovebolt engines, but I've never heard of one.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!