[AnotherWs6]

My understanding has always been that a dual feeds from the opposite side of the bank which would mean that it would only work on duals. A single plane is essentially an open plenum. The dual planes cross over the engine in order to lengthen the runner. Long, narrow runners = low end torque. Short, wide runners (direct shot at heads) = high rpm power.

The picture of this Edelbrock Super Victor illustrates the idea well. Each cylinder is being fed with the shortest path to the carb as possible. No twists and turns, crossing over etc. Now what would happen if you put a divider right down the middle of that thing to create two banks?