how do I remove the power steering pulley off an 82 riviera with the 5.0 307 motor

Clean off most the rust on the inside of the pulley. Then take a small torch and heat up the pully in the middle and stand kinda back. It should pop off eventually, sometimes 2-3 feet. So be carefull if you use this method.

Otherwise you could try a ton of PB Buster and a pulley remover. I always seem to break the damn things, gave up using em years ago...