Not to completely swing this discussion over to the MEL family, but some interesting things were done with the configurations and the heads (at least on the Lincolns). It's been a few years since I was inside of one, but this is what I recall from Dad's '62, my old '64, and a '59 engine that we still have...
1958-1960 430's had a factory 4 barrel intake, and heads that had HUGE intake ports...and a rating of around 375 hp (+/-)
1961-1962 430's had factory 2 barrel intakes, and smaller intake ports...300-325 hp rating if I recall...
1963-later 430/462's went back to a 4 barrel manifold with the small ports...
There are a hand full of speed parts around for MEL's but not too many...kick myself for not grabbing the 6x2 manifold from the guy we got our '59 430 from...
Todd in Central California...about half way between Fresno and Sacramento
1956 Thunderbird - 1960 F-100 - 1961 Starliner - 1961 Imperial