Well, look what we have here!

The port work in those heads is not what most think it is. It's a gimmick. Any time you force the air to go where it doesn't want to go, you lose energy. There is no reason to force air across the back of the valve over from the long side to the short side. It's a waste of energy.

If your flow bench has a swirl meter, you'll see how much energy that style of porting really wastes.