What pulleys for manual steering 1970 duster v8

hey guys so I recently installed a cvf vbelt water pump pulley and crank pulley and alternator bracket on my 70 duster. My issue is the crank pulley is too small and causing my voltage to be low at idle. What’s the correct crank and water pump pulley combo I need. It’s manual steering too. Part number and website would be awsome thank you. Here’s a pic of my engine