Originally Posted by fast68plymouth
Hit the 45 with a stone to widen it up a bit, hit the 30 to bring the outer edge in......probably only sink it .010-.015 or so.

Must be no one believes I know what I did with that head.

I absolutely believe what you did to that head. What I found confusing is that the heads were finished w/ the smaller valves, despite what I would have thought was obvious that a larger valve had been cut for the one test port.