Cylinder head dyno shoot out

PRH said
That being said, I feel like a stroker built to accommodate power levels approaching 600hp would do a better job of differentiating the power capabilities of each head.

The object is to see the power potential of the different heads, right?
Put them on a short block combo that will use them up.

That's my thoughts as well. Some of these heads are CNC'd with stroker motors in mind and have chamber sizes that will give a lower compression ratio on a 365. The 365 would also have to be spun 800-1000 rpm higher to get the same max hp numbers. When do valvetrain issues become a problem?