Driving down Alum Rock yesterday evening I came across the Antojitos Mexicanas Los Tres Reyes truck and scored some fantastic tacos al pastor. Didn't see much written about them here, though I know they've been around for a while, so figured I'd give them a quick nod.
I don't claim to have tried many al pastor places nearby (I work here, but live in the southern part of the state), but these were the best I've had in San Jose by far.
The picture here was taken at about 9:30 p.m. and the spit was still running as you can see. Tacos were - I think $1.75 each. I had al pastor and pollo. Pollo was fine, but al pastor is all that mattered. Fantastic. Great flavor, but pork that was tender and juicy, not dried out or heavy handed on the flavor. Give it a go.
Would love to hear other folks' favorite al pastor in the broader vicinity.