Here are a couple of very hard to find pullies for Big Block Chevelle Beaumont with factory A/C.They can used if you don't have A/C as well but you will have an empty groove where the A/C/ belt would go.

part #'s 3937787 is a big block crank pulley w 396 A/C

part# 3941107 is a big block power steering pump pulley w A/C

THEY ARE PAINTED SEMI GLOSS BLACK $ 80 pr. shipped