My 422 smallblock build

I'll be interested to see how you feel about the dual-plane intake, simply because I have the same one as well as the iron MP manifold. Opinions seem to vary wildly about the aluminum one, but I've heard several good things about them from those with experience. I haven't heard a peep about the iron manifold (essentially a redrilled 1980s 360-4V truck manifold). I'll probably just have to try it myself and see.
I used a port-matched Strip Dominator on my Valiant, but I'm mid-process going to closed-chamber 15° heads. I'm thinking I'll try a Victor this go-round.