Look for thread VinAir in 61 Pt 1 in this subject. Might help. I found original comp and generator mounts. Hard to find. Same for pulleys. When factory went to AC the crank pulley changed diameter and back spacing. Then added a separate third pulley for AC comp. WP pulley decreased a little in diameter. The PS pulley also changed in diameter and back spacing. Some used to come through ebay but I haven't seen any for quite a while. You might try Franks Pontiac Parts in CA.
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