Guy Fieri finds out what only the locals know at some places that have been drawing hometown crowds for years: The A1 diner in Gardiner, Maine, where they're cooking up gourmet specials in a 60 year old classic; Leo's Barbecue in Oklahoma City for amazing ribs in a former gas station; and the Eveready Diner in Hyde Park, N.Y., where after more than half a century, they bake their own bread and even the pancake batter is made completely from scratch.