Guess its a story that is as old as cars are: "this is a big hp engine" I was told and I bit lol.
So what I "know" (what I've been told) about the engine:
74 360la, Bored 30, Steel crank, TRW flat top pistons, "swirl port" heads (supposedly ported) 1.88 valves, 4.55 purple cam, stamped rockers...