We do have a very skilled vintage Mustang/Ford mechanic in Santa Clara. Mitch at Mustang Fever (408-748-1337) at 611 Reed Street is one the best mechanics I have ever worked with. He has been helping me maintain my 1968 Cougar and 1968 GT350 for about the last 12 years. He is not a Shelby specialist and doesn’t profess to be, so I make sure to supply any Shelby specific parts that are needed. He is amazing when it comes to trouble shooting issues. He has performed suspension, clutch, transmission, brake and electrical work for me. He is capable of doing pretty much anything but paint/ body. I know he works on anything from 6 cyl Mustangs to Boss 429. I have always been happy with his work and his pricing is fair. He is honest and will be straight with you.
Good luck,
Jim