The Sport name replaced the Demon name starting in 1973. (Too many complaints from religious people i guess) It wad svailable with dlsnties, 318's, 340 1973 only, and then 360's. It shares the same body as the Duster with a 108" wheelbase. The Swinger looks different and has a longer wheelbase (insert period here)
There will be extra gaskets in your kit because it spans several years of production. For instance, spark plug tubes were used in the early years but then the head was redesigned and not needed on those.
You need to read up on slanties as there are proper procedures for doing things like installing the manifolds.
Take pictures before you rip into it and if it was me I'd start with checking the head out thoroughly before throwing it back on. Flatness, valve and seat condition, etc.
Don't let the curmudgeons discourage you. Maybe it would be best to ask one question at a time and go from there.
