LeBron James says the Miami Heat still have not played their best in the Eastern Conference finals. He also knows the Indiana Pacers would say the same. Such is the story going into Game 4 at Miami tonight ( 5:30, ESPN), with the Heat up 2-1 in the series. James and the Heat have been outplayed for long stretches of the first three games, yet still have the series lead after pulling off late comebacks in the last two matchups. Pacers coach Frank Vogel says it’s like a little brother having to learn how to beat a big brother, and his team knew exactly what he meant.