Classic auto air install 1970 Duster with 340 and Edebrock Super Victor EFI Manifold

Thanks for posting all of this. So far as the pulley, that is/ was common, clear back in the early 70's my 70 RR 440-6 I bought from a friend, had had "hang on" added AC and it was that way--a big beefy added pulley held by 3 of the dampener bolts. Realize just how strong 5/16 grade 5 bolts are, and you'll have no worries.