A hydraulic cam in a stovebolt engine is a solution in search of a problem. The oiling system is far too primitive to make a juice cam a reliable choice, and the design of the lifter that's commonly available is stone age technology. It's possible to make the situation somewhat better by using a different lifter design, but the diameter of the lifter bores has to be reduced by putting sleeves into them, using a lifter designed for a MOPAR or AMC V8 engine, and altering the design of the pushrods.
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!