CNC Ported Heads for 318 Poly?

There was a stroked 318 Poly in an EMC entry that made 580 HP. Spending massive money for 271 cfm isn't my cup of tea, but for some its interesting to have something different.

Personally I am more interested in the 471 cfm and above stuff, but I can appreciate the dedication spent on all variations in the engine world.

Tom