The dominance of Holley carbs as much less to do with design than it does available sizes. How many fast cars do you see out there running carbs less than 800 CFM.
Back to back, take a tuned 600 Eddy and an equally prepped Holley, put them on the same engine on the same day, and it's going to be a toss up which one goes quicker. I always choose the Carter/Eddy over a Holley WHEN PRACTICAL. The Carter design is so much more user friendly once you get to know them.
