Intake Velocity Speed of 565 CID w/850 Holley?

Should be able to get close on one of those Wallace calculators. The speed of the air going in is measured in CFM, so, plug the cubic inch and given RPM in and you should get close.......of course things like camshaft, head flow and the like will be variables, but you should get in the ballpark.

Please correct me if I'm wrong, but with an 850 Carb, that is close to 900 cubic "feet" of air per minute. So if you divide 900 CFM by 3 you get 300 Cubic "yards" of air per minute right? So that would be "close" to 1 foot ball field by 1 foot ball field by 1 foot ball field of air going into his engine per minute, right?

I am a rookie when it comes to calculations, and I have dyslexia, but is that right?

Thanks