Eddy vs Holley CFM ratings?

I was recently watching an episode of Roadkill Extra where Freiburger and Dulcich were discussing a 318 mopar. They touched on the carb and mentioned how Dulcich put a 800 Eddy on it and how normally people would think that's oversized but it works on the 318. They then said that Holley and Eddy rate their CFM differently and thus they large Eddy.

Anyone have info or thoughts on how the two compair in CFM ratings?

Just curious. No need to get into a Eddy vs Holley fight.

Fast forward to 4min mark if you want just the carb talk.