Once again it all comes down to how well you fill the cylinder in terms of quality and quantity. What happens in the cylinder is not always a direct reflection of what you think is going on in the port. The word "combo" gets used as a catch all for when a group of parts do or don't perform like we think they should but I've seen too many "combo's" that punch above their weight according to CID to HP/TQ to CFM to VE to simply dismiss them as outliers.
There's more to this than just airflows to making power but when you only have a hammer or flow bench.......The Smart guys are looking at what's happening in the cylinder and how the port affects that.
Anyway back to the "It needs more airflow narrative" :lol: