I have dealt with the machine shop in Prescott since 1985 and they have always done good work.
Maybe being a small town shop they pay more attention to their work than the average shop in a big city with millions of potential customers.
It's always been my experience here that people talk about businesses good and bad, and word spreads like wildfire if somebody screws up, or if they do good.
One advantage of a small community, if a business owner doesn't treat people right, he isn't going to last long.
The shops I knew in Tucson were iffy, as are most in Phoenix with the exception of the one who specialized in their work and they did the machine work for my 383 stroker.
Sure, given the cost of engine building I can see the reason so many buy a complete one new or reman, but in this case, my friend is learning auto mechanics and i am teaching him detailed theory about everything automotive before I croak so he understands how and why everything works, and giving him hands on practice so it sinks in.
Plus, there is a certain satisfaction in knowing how an engine went together from the get go, and when it fires up and comes to life it's an exhilarating feeling and makes all that work one did rewarding.
As for the GM flat cam lobe department, the Goodwrench engine that the previous owner of my 83 C20 installed has one, it runs the fuel pump and the ticking sound got so annoying I yanked the pump and pushrod, installed a block off plate, and went to an electric fuel pump.