pontkid,
Several of us live in N. Cal. I live in Livermore, "058" lives in Hayward... As far as I know the only specific v-drive swap meet is held once a year at Weaver's in Livermore. The Goodguy's shows at the fairgrounds in Pleasanton usually has several boat guys there. The next Plesanton show is June 1-2.
If you are looking for something specific post it here and you usually get a pretty good response...
S&S