318 and 360 mounts, and cfm/hp ratio?

The nice thing about this formula is that it will work on any automotive engine, it's not just for mopars. If you have the airflow data from any head, you can figure out the output of the engine in which it will be installed. Providing that the rest of the engine has the correct parts to make the engine respond to the #'s.
But this will give you the potential of the heads, it sure is fun to see how airflow effects a engine.