Intake & exhaust runners

Foggy memory says that back in the mid to late 80's "Car Craft" published several articles on just those very subjects, printed graphs that crossed air flow, displacement, RPM, velocity, cross sectional area. The graphs while very general in nature did get across the affects of one variable to another. In the overall scheme of things, unless you are gonna cast your own heads, just go with what you have and don't spend alot of time thinking about it. It's way too easy to get wrapped up chasing "ideals", cars are assembled compromises.

If possible while on deployment, take an online course in fluid dynamics, it will help.