ASHEBORO, N.C. – George Brunnhoelzl III withstood three attempts at a green-white-checkered finish and hung on to win the Parking Lot Maintenance Headquarters 150 in NASCAR Whelen Southern Modified Tour action on Saturday at Caraway Speedway. Brunnhoelzl, the two-time Tour champion out of West Babylon, N.Y., dominated the day. He posted …