LOUISVILLE, Ky. — Would KGC ever have the same ring? In a culinary gambit backed by buckets of big money, KFC is hoping to replicate its founder's recipe for success with the national introduction of Kentucky Grilled Chicken. This week's rollout is KFC's most ambitious attempt to win over health-conscious customers as the chain known worldwide for fried chicken tries to reinvigorate lackluster U.S.