367 vs 410 Engines Masters

Some numbers-
Real world results of a 12:1 540 BBM with ported -1 heads and a 281/293-112 roller cam with the Indy manifold and an 1150 on it.
805hp……1.49hp/ci
If you swapped in a stock stroke rotating assy, kept the same CR, and reused the rest of the entire top end(which are all parts that people regularly use on 440 builds)….to make 805hp the hp/ci would need to be 1.78…….which is noticeably higher than any 440-1 engine I’ve seen on the dyno.