All I can add re: the Procomp (now "Speedmaster") CNC-ported heads are what I saw w/ their big-block Victor "clone" head.
1. Looked like an attempt at "real" porting, rather than simply opening up the as-cast runner
2. Quite a few drop-outs where the casting was untouched by the program, especially in the chambers. Any claim of getting "identical" ports from having CNC porting goes right out the window when you see that sort of stuff.
3. On the bb head, the CNC program doesn't "fix" issues like the casting under-hanging the exhaust seat inserts leaving a "dead zone" (step) below the insert

I'd like to test one on my bench, considering the Victor (and Victor "clone") data I have so far, but wasn't impressed enough by what I saw to want to buy them. - Brad