Cylinder Head Porting and Power Production

I’d like to see some proof of a high swirl head being better and a explanation of why. Hysterics pictured post above doesn’t show anything exotic or trick to me. I’d also like to know what piston and work done to the piston that this head covers along with the compression ratio and cam used. Or just simply, the rest of the engine.

I disagree on a $600 port job on a aluminum head to equal these heads.

The one thing I learned early on is there is always more than one way to skin a cat.