Plenty of good Norcal names already mentioned.
Lambeck did my Hemi back in 1988, still going strong. We had a good relationship. HOWEVER, about 5 years later he did a race 340 for me that was full of errors & problems - oil pressure (clearances), valve notches machined THROUGH the domes, a mishmash of wrong & under-torqued bottom-end fasteners, etc - that we found on its post-mortem after it kicked a rod out on pass #3. Looked like it'd been built by his gardener, and he charged me $10,000. He said "tough sh*#", but offered me a T-shirt later at the track...