Brad SweetHeartland of America Showdown Winner Brad Sweet came into The Freak Nation after his big win over business partner and brother-in-law Kyle Larson. Sweet and Larson are co-owners of High Limit Racing, a sprint car series just launched by the pair. Sweet, in fact, just won the Heartland of America Showdown at Lakeside Speedway outside Kansas City. The $50,000 win was important for Sweet, a driver for Kasey Kahne Racing. Listen…