This trip, Guy’s going for surf and turf between the slices. In Vancouver, British Columbia, a food truck shuckin’ and frying oysters for a po boy and topping crispy fries with a mean seafood chowder. In Detroit, Michigan, the 18,000 foot joint giving savory brisket a beer batter bath and a place on a fresh panini. And in Chicago, Illinois, the Italian market scratch making meats for the meatball hero and the crispy porchetta sandwich