there's also a book by Huntington and one by California Bill sold at numerous places (including Amazon). They are reprints from circa 1953 so they deal with 216s, but a lot of the info is transferable.
'59 Chevy BelAir (v8) '50 Chevy Fleetline DeLuxe ('55 235) '48 Chevy Fleetmaster coupe (late 261) Chicago