Cylinder Head Porting and Power Production

@RAMM this is a great thread. Thanks for taking the time. A lot of good info.

I'll tell you what I'd like to see also, though. A cost comparison per HP gained. I'm always concerned about budget and I'm sure a lot of others are too. Seeing these "all out" efforts is great, but the average person can't afford that. Just wondering, for example, if you can give a cost comparison for instance from say a "street" port to a "street/strip" port to an "all out" port? I realize costs vary due to location, but I'm curious as to HP gained versus cost. IF that makes sense. Or maybe better put, CFM gained versus cost, if that puts it better.