Ditto CNC Dude.

I don't know how one could pick out a cam for a performance engine with out the flow numbers. You need flow numbers at all lifts, and it helps to have reverse flow numbers at the lower lift for intake reversion. You can get 200 cfm @28" on the 235 chevy which makes 300 hp possible. GMC racer that have dynos are claiming 350-400 hp (on gas). I know one racer is welding in the GMC combustion chamber to help out the short side port radius. Yes this is the 21st century and more hp is coming.