Like a snowball gathering mass rolling down a hill, the SO-CAL Speed Shop party started off as a small gathering between friends of the shop with hot dogs for all. The food got more elaborate and, 15 years later, SO-CAL Speed Shop has to employ a mobile In-N-Out Burger truck cater to the thousands of folks who show up at the Pomona-based shop between 3 and 6 p.m. Friday before the L.A. Roadsters Show.

Due to constraints from the city fire department, only 125 cars made it into the shop’s parking lot, but 400 or more were spread around on local streets and lots. Folks got to wander through the facility, which has 14 high-level hot rods being worked on at this time. Got a nice car? SO-CAL’s Pete Chapouris says he’s already got a file started for the 2012 event!