Panic, would you repeat that bit about average flow being 6% of peak flow?

Is that average flow during the intake event?

And where did that figure come from?

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I wouldn't think velocity and pressure would be too hard to map in a running intake port - cylinder pressure has been recorded in running engines. I'd be willing to bet it's been done.

One thing to remember about flow bench depression is it on the cylinder side of the valve, not the port side, whatever that tidbit is worth.