400 cfm AFB?

WCFB = Will Carter Four Barrel, Carters first 4bbl. carb. I know they were small, but how small I do not know.
Yes, they made 400 cfm AFB's. Dual Quad applications will have them. There expensive lil'bugers since they only came on street dualquad engines. Theres not many applications for them. Chevy and I think the Poncho's used them as well as the Fury's etc..... from MoPar.