Beater:
The 4-cylinder head should bolt right up to the Chevy-II iron block. I'm guessing Scott would need to build a new set of patterns for the 4-cylinder 4bbl intake similar to the 6-cylinder manifold shown in the photos.
Just thinking out loud: Perhaps the 6-cylinder 4bbl manifold patterns could be revised to support a 3x2 setup as an option. Hmmmm ...
I also talked with Scott some time ago about the idea of side covers with mounting pads and nice finned covers to mount (and hide) coils for "coil near plug" ignition to replace the typical distributor.
Russ
