Incheon (South Korea) (AFP) - Teenager Kim Cheon-Yong picked off two shooting golds on Sunday to take South Korea clear of China in the Asian Games medals race as swimming rivals Sun Yang and Park Tae-Hwan headed for a showdown.North Korea also made its presence felt at the Incheon Games by getting its first gold medal as Olympic weightlifting champion Om Yun-Chol raised more than three times his body weight to set a new world record.Seventeen-year-old Kim kept his nerve to take the men's 10 metre air pistol title and was also in the South Korean trio that took the team gold.