Two Holley/Weber 5200s add up to 400 cfm if measured as one 4 barrel. I think the 400 cfm mentioned by carbKing probably is about right. It's 1.6 cfm per inch. I have two webers and a bucket of parts. I just don't know if I want to fool with dual carbs. The single holley/weber 2 barrel I am using now works great, but this is a very tired stock motor. Eventualy I'll break free of the paralysis of analysis and make a decision!
Bob
