Trick flow

yellow rose said
I think it's easier to understand the relationship between flow and volume is to look at a pcar head and a W-2 head.

You can work your guts out on a pcar head and get 260-265 CFM. A W-2 with a decent valve job will wake that CFM but be 70-80 HP better. It's a volume issue.

All these big inch small blocks are severely under headed as far as volume goes.
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not arguing here, but I both of u are right to certain extent . port flow is greater on a bigger port, depending on the air speed. little air speed can kill a big port. Remember how sick 460 fords were, they had huge ports but didn`t run worth a crap.