I found two stores well worth the visit in the area between San Fran and San Jose. Easy to stop and shop on the way to the airport.
Heroes - 24 E Campbell Ave, Campbell, CA 95008 - Heroes
Heroes and Champions Comics - 574 E El Camino Real, Sunnyvale, CA 94087
I started at the 24 E location and found a large amount of high grade Marvel horror from the 70's as well as Epic Illustrated I needed but most of all, a nice Conan 37 CGC 9.6 WP Adams book. After buying a large stack, they told me about their sister store and I headed there as well. And of course bought some more books. Both stores have a large amount of wall books with, perhaps, Heroes having more pre-70's books in raw and graded. The 574 E store had a larger selection of high grade raw from the late 70's thru 2000's. I was easily able to find books I needed (and books I did not realize I needed).
Good stuff and great staff.