Just like hand porting most of the time you get what you pay for.

$1000 CNC job most of the time will need some work to make good.

If you start out with bare Indy 360-whatever and hand port to max potential it would take 40 plus hours at $50.00 per hr. = $2000.00


The other deal with CNC castings have thin spots all the time to make money you can't junk lots of heads so most mass produced heads are backed off little vs what hand port master was.

My w9 program is on the "edge" gets little thin but it's not mass produced

I also have 3 intake programs for that same head to fit wide range of builds.
So you can cut smaller port and hand finish for application or cut the big one and add the weld that's needed with the customer knowing up front heads will have holes into water when done and need weld.