Correct me if I'm wrong here..
But a higher flow should be seen at a specific RPM "if" this is more efficient .. correct?
x volume per cylinder restricted (oem)
x volume per cylinder free flow (tube and cone filter)

Sorry if I seem slightly "ignorant" in this stuff.. Cad drafting and sheetmetal is my thing.. LOL.
68 Chevy 327 CID (transplated from a '66 mated to a turbo 350 with shift kit) was my last and only real interest in mods before now.. car was 11 years old if that gives you a clue..