Slant 6 Intake Manifold

There are a number of aftermarket slant intakes. Just to name a few - Offy 4 barrel, Clifford with a 2 or 4 barrel adapter, Offy twin single, clifford triple Weber, triple SU’s and then there’s the factory 2 barrel. Which type thinking about?

I’ll modify my post but a Offy 4 barrel, Clifford 2 Barrel or Aussiespeed 2 barrel short ram would work.