If you don't want to try to drill and tap the intake for a PCV fitting, make a 3/4" thick aluminum spacer between the carb and the manifold, and drill and tap it for a 3/8" NPT brass vacuum nipple.
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!