Not Fast, just "Less Slow"

mvh said

I have the super six 2bbl carb and manifold, but looking at it compared to my 1bbl, I'm kind of underwhelmed. Man, those are some tiny throats. Looking at total cross-sectional area, it's not an enormous improvement, and the orientation is 90 degrees away from what you'd want. It makes me think dual 1bbls would be much more effective. Actually, I am visualizing a pair of SU HS6's, like a Jaguar -- the motor's the same displacement, and they are as simple as carbs can be.

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Max I sort've come to the same conclusion. But it's the area of the 2 combined throttle bore compared to the single bore.
Because of the span between the #1 and #6 intake ports it would be almost impossible to come up with a manifold with equal runner lengths. But a pair of 3 runner manifolds with 2 carbs would be closer. Twin BBD's? There's a company in Australia (or NZ) that makes a triple carb manifold.

I had commitments over the weekend and didn't do much more than bend up a new main brake line using the original as a pattern.