Weren’t they ram tuned intake manifolds? Carbs sat way to the side of the engine and intake tubes to the manifold.
The dual quads sat on top.
I don’t know how you would get 3 deuces side mounted on a v-8.
Those cross ram intake manifolds were on earlier models not on Superbirds or Daytonas.
You're thinking of the "Max Wedge" versions of the 413 and 426 with their cross ram intake manifolds. The original race version of the 426 Hemi in 1964 had a similar set up (although the street 426 Hemi introduced in 1966 had a more conventional dual quad set up).