In 2008 we had a "slight overrev" on our 23* Pontiac heads. I pulled them, got to Chapman at 4pm, and was on my way back to Wendover @ 9pm with 16 new valves (needed only 15!), seats recut, etc. Big Mike is the MAN! He "borrowed" some new Manleys from another customer's build, did the same with some pedestal shims, and got us back on track. Absolutely the greatest service. vic