New 91 Stealth tt owner Bay Area Ca (advice)

I recently purchased my first project car a 1991 Stealth Twin Turbo with 51k miles. I am located in the Bay Area about an hour away from San Francisco and as my first service i am going to do a full 60k service, does anyone local to the area or CA in general know any shops that are competent with 3000gt/stealths? if so are there tuners that can work on Mitsubishis around this area? also if anyone can recommend any other supporting mods to boost reliability that would be much appreciated.

Thanks for any help