David Vizard - Which to prioritize - PORT FLOW or PORT VELOCITY?

Are any of the ootb heads available to us have velocity in the ideal range for there given flow vs port volume ?

Which I don't think any of them are which means your unable to ever build to optimal velocity, unless you modify the head for more flow for a given size or less size for a given flow. And say they all are built with optimal velocity that means whatever head you choose you'd have to build for that particular heads ideal rpm for that cid.