A clock showing the legendary pitmaster hangs on the wall at Arthur Bryant's Barbeque in Kansas City. When in Rome, the saying goes. And that's exactly what we did recently in Kansas City. We went to Arthur Bryant's Barbeque. While the food didn't sync with my Texas tastes, the atmosphere was wonderful at this classic joint on the edge of downtown. Of course, when talking about Bryant's, sooner or later, Calvin Trillin's 1972 Playboy article gets mentioned. Trillin, from Kansas City, wrote then: "It has long been acknowledged that the single best restaurant in the world is Arthur Bryant's Barbeque at 18th…