I will say that it idles and drives around town every bit as nice as it did with the 770 Holley. I do think the back Eddy has a slight stumble when used by itself
That seems like a real strange situation not having an open plenum underneath both carburetors. Mine I can rev the entire engine with each carburetor separately and I can tell if one's not performing up to par...(Jpar..)..:D..