340 Vs 360

Displacement is fixed & not changed through rpm.
Static displacement is, but were dealing with a running engines so I'm talking Dynamic displacement, what an engine displaces every minute.
CFM is not potential because of limitations of what’s consuming it.
Fuel and it's volume of air has a potential energy an engine only gonna use a % of that potential energy to make hp.
You can’t increase the size of an engine through rpm.
What is displacement in our case, but volume/weight of air, the engine measure displacement x ve% moves that much air per revolution, more revolution more air being displaced eg.. A 360 moves 0.104 cfm (cfm = volume of air per minute or a displacement of air per minute) per revolution more revolutions more displacement. A 360 @ 5000 rpm = 521 cfm a 360 @ 6000 rpm = 625 cfm at 100% VE. A 340 @ 5316 rpm = 521 cfm a 340 @ 6378 rpm = 625 cfm same dynamic displacement and yes sure you also spin the 360 more to.

I see where you’re going with this but this is ill spoken and needs to be combined with an explanation of to what’s going on. The statements by themselves are false & can be misleading.
I guess, makes perfect sense to me :)