And of course, if you do the metric conversion, then a 750 CFM Holley carb flows 21,237.635 litres/minute

Jon
Cubit feet per minute is a pretty sensible way to express carb flow. Can sort of wrap your head around what that “looks” like.
I’ve always thought it’s funny that baseball pitchers are measured in miles per hour. On the one hand, it’s a familiar measurement. But baseballs don’t travel for miles or hours and it kinda dilutes the difference between average and excellent. Feet per second would be more apt.