LONG POND — NASCAR Camping World Truck Series rookie William Byron learned Pocono Raceway quick. After running the 200-mile ARCA race in June, Byron entered Pocono with the points lead and put on a dominant performance in winning Saturday’s Pocono Mountains 150. Byron led 44 of the race’s 60 laps and checked out from the field for his fifth Truck Series victory of 2016. “This is the credit to this team,” Byron said.