Here are a couple of simple to use calculators for estimating Holley carb cfm for the engine horsepower you want:
https://www.gregraven.org/hotwater/c...ors/airflow-hp
http://www.1728.org/mtrair.htm
Both calculators assume the following:
Air flow (CFM) = (Horsepower × 0.625) × 1.1104
Horsepower = (Air flow × 1.6) × 0.9
The assumption is that you can make 1.4409221902017300 horsepower per CFM of Air.
Works for me as a simple calculator.
So with our 13.35398 cfm of air per pound of air mass (in the previous post) we would make 19.23 horsepower for that pound of air mass going thru the engine.
Tom V.