Yes, cause we don't have the VE%, 90% of the time I included VE% in that formula, I didn't there cause is was a basic simplified version of what I'm talking about wasn't meant to encapsulate every possible variation of mass of fuel and air, physical size of fuel and air and efficiency level, It was just half a sentence. I'm pretty sure at similar altitude and temp and cr etc.. the cfm per hp is gonna be similar.
Not really, the point was the cfm measured is the actual displacement of an engine at that time and place, not 410 or 367 etc.. that's what a non running engine is and matters a lot less.