MIAMI — LeBron James shrugged off a poor start to get 32 points, 11 assists and 10 rebounds, Ray Allen hit a 3-pointer with 5.2 seconds to play to force overtime and the Miami Heat staved off elimination with a 103-100 victory over the San Antonio Spurs in Game 6 of the NBA Finals on Tuesday night. James missed nine of his first 12 shots, but scored 16 points in the fourth to rally the Heat from a 10-point deficit. The Heat trailed 94-89 with 28 seconds to play, but James hit a 3 with 20 seconds to go and Allen drilled another to tie it.