Looking for a performance engine builder

Norm Sappenfield at NCP Motors in Diamond Springs builds a really nice, dynamically balanced engine, but check to see if he's still working. Maybe he retired, I'm not sure, because is getting pretty old and may have sold his shop. Also, regardless of what engine builder you choose, do your own research regarding quench and tell the engine builder exactly how much piston-to-combustion chamber clearance you want. Most engine builders don't seem to know the importance of quench in a Mopar engine.