Need some help from my head machining buddies

One of my customers used to have a speed shop/machine shop.
He sold it off probably 12-15 years ago.
He kept a small group of his circle track customers that he still does motors for, and he brings me the heads for the guide and seat work for those jobs.
There is often a little discussion about what angles he wants, and what chamber or bowl cuts that may be needed, etc.

If you’re looking to have something done a certain way, don’t assume the guy at the machine shop is a mind reader....... have the talk and discuss it.