Yup and I knew that. Partly I was just rebuilding some carbs and this was the easiest engine to work on and test em.

My formula for cfm is roughly "double your horsepower" so about a 300-350cfm 4bbl would be perfect, but there is no such animal unless you go back to the early 1950s. A 500cfm (at 3" Hg) 2bbl is about the same size but the whole point was to go progressive.

But the surprising point was it didnt matter. I really thought the big 600cfm Carterbrocks would be soggy but they weren't.