A lot of time too much emphasis is placed on the flow number.
When, many times the port “area” ends up becoming the more dominant feature in terms of power production.
If the heads for a particular combo are grossly undersized, having them flow a little more cfm and staying too small isn’t as effective as having them flow the same..... but with more area.
Ideally...... you’re looking for a good balance of flow vs area vs engine displacement.
This is why there are so many runner size options for the more popular brand X stuff.
