This place in Chinatown doesn't have a very Chinese sounding name, but it is famous for its salty stir fried crab. They use local dungeness crab that I rave about. Although the MSG and batter are a bit excessive, it's definitely very San Francisco Chinese.
Add in some beef ho fun (it sported a very greasy aroma but lots of meat tenderizer) and chili oil, and you are good to go. It's not quite as good as Hong Kong, but pretty close, and certainly much better than Crystal Jade in Singapore.