carb setup for /6

Carbs I've run on a slant -

Twin 2bbl carters on speco manifold.
4bbl holley on Cain manifold
Triple 1 3/4" SUs on lynx manifold.
Single 45mmDCOE weber sidedraught on lynx manifold
Triple 45mmDCOE sidedraught webers on lynx manifold.

Anything can work and work well.

I built my own sixpack setup for my 440 barracuda.
You just need to understand a couple of rules for tuning multiple carbs.