318 differences 1972/1973

A 4 bbl, duals and a cam like comps 265 will get you in the 230 hp net range though.

At the time I tore mine down for paint, I had a 73 or so 318, mild cam "about same" as a 340, Ed Performer Intake and 4BBL injection, same as a 4BBL With 3.7X gears the thing was snotty as all get out.