New guy to big block world, need a 400HP 383 Recipe

txstang84 said
...with a better cam, corrected seat work on the heads, free flowing exhaust, and optimized timing.

that was kinda my point, stock mag was rated at 335 or something? so it was at least 50hp more. Those stock cams had a ton of overlap compared to a modern cam with the same specs (gain low end) then with a dual plane and 750 holley it would be set.