Greetings from the Springs. Where in CO?
I have 3 suggestions none of which are in CO. I learned my lesson about trying to use local. They know machine work but they just don't know our bikes. For what you need: our head man is here, Mike Rieck in MA. Serious performance work ie big valves, porting, etc or simple head work. I also use Kenny at CycleX in WI. He just recently did a big bore job and replaced a bent valve. My other option is Big Jay at APE in Willow Springs, CA. All of these guys teeth were cut on CB750's when they first came out. They can all handle what you need.