Reply to "Annular vs. Down Leg boosters"

If you measure how much air flows through a carburetor at a specified depression (differential pressure) with the fuel bowls empty, that's dry flowing a carburetor. In actual operation a carburetor flows both air and fuel. So if you measure how much air flows through a carburetor at a specified depression with the fuel bowls filled with fuel (or a reasonable substitute) that's wet flow. With fuel being metered into the carburetor during an air flow mearurement there will be less "room" for air, so the air flow measurement will be of decreased volume. Why Barry Grant decided to rate his carburetors based upon wet flow measurements when all other carburetors are rated based on dry flow measurements I can't say.

The important thing to know is that there's a difference in the ratings between Demons & Holleys, for a carb of equivalent air flow capacity the Demon's rating will be approximately 100 CFM smaller than the Holley's. And now that you know that, you are an informed consumer.