With a "mild" cam, I think you only have two reasonable options,
the Vanke mod dual plane with two Eddy 650 Thunder Series (AVS) carbs
& progressive linkage.. OR the Stage 5 with two Eddy 650's and non progressive linkage. I had a 540 lift solid flat tappet on my 434
Hemi with the Stage 5 & two Eddy 600's (AFB) & ran great with non progressive linkage. I think the Barton single 4 intake & a big carb
would out perform the Vanke 2x4, but a Hemi always looks better, IMO,
with 2 fours. If you go the vanke route, I"m sure some of the Hemi gurus will chime in with the jetting & spark plug variations that balance them out.