Unfortunately small blocks are not as easy to say "use this one, it'll be perfect" as an LS. There's so many front drive setups and head setups (some heads don't have bolt holes at all, others have different combos of bolt holes). That said, Restomod Air, Vintage Air or ICT Billet would be my first couple calls. They can help walk you through what you'll need and what compressor will work for you. There's V-belt, serpentine belt options, size of compressor, type, etc. So many variables that I'd highly recommend talking to one of those companies first so you at least can get an idea what what factors into what bracket/compressor will or won't work for your truck