79 360 cam selection

The May 2001 issue of Mopar Muscle had an article doing pretty much what you are trying to do. They started with a junkyard .040 over 360-4 bbl out of a Dodge truck and built it on the cheap, step by step. The initial dyno baseline (stock) showed 266.2 hp at 4300 rpm and 371.3 ft/lbs at 3300 rpm. They tried different component combos and finally got 335.6 hp at 5100 and 400.6 ft/lbs at 3700 without spending too much and with stock heads. Note that this engine was to be used on the street and had to pass a smog inspection. I'm getting ready to do a similar project on the 360 that's in my 79 Chrysler 300.