Here is something else for guys to think about..........So lets say we believe the power claims for this splayed valve motor pictured. And lets say we know what a killer set of splayed valve heads vs an inline head flows as far as air. So if we hear of an inline motor with heads that flow way less air than the splayed ones, is making over 900HP......are we buying that claim?...........I'm not

While total air flow is NOT the be all end all number, CSA, air speed and many OTHER things also come into play, it is a pretty safe assumption to expect to make 900hp, that you will need a head that moves right at 400cfm of air. THAT thins the herd of potentials very quick