Slightly strange head flow question.

Cheers guys...

Brian - I understand where you're coming from on different chamber characteristics etc.

Assume like to like on everything but port flow #s......

I guess I'm trying to get a handle on "how much port flow is too much"...assuming the heads and valve train are compatable with the engine stroke and compression etc.

Am I right in understanding what other posters are saying?

- That ideal port flow is not an exact science, and can't be predicted exactly for each engine?

EG - That 320cfm might be worse for the 392 than 270 cfm?