INDIANAPOLIS, May 8 (Ticker) -- Indiana Pacers guards Reggie Miller and Jamaal Tinsley have the Miami Heat worried about a whole lot more than Jermaine O'Neal.

　　Miller scored 19 points and Tinsley handed out nine assists as the Pacers rolled an NBA playoff-record sixth straight double-digit win, a 91-80 victory over the Heat.

　　Top-seeded Indiana remained unbeaten in the postseason, opening a 2-0 lead over Miami in the Eastern Conference semifinals. The Pacers have won their six playoff games by an average of 15.2 points.

　　When this series began, the fourth-seeded Heat appeared to be overmatched up front primarily due to the presence of O'Neal, an All-Star power forward who finished third in NBA MVP voting. While limiting O'Neal to 10-of-32 shooting with double-teams, Miami has allowed his teammates to get loose.

　　On Saturday, it was Miller who was a point-per-minute man. In 19 minutes, Indiana's elder statesman made 6-of-10 shots, including 3-of-6 from the arc.

　　Many of Miller's open looks came on deliveries from Tinsley, who played a virtually flawless floor game. He missed his only shot but did not commit a turnover and made three steals.

　　Ron Artest scored 20 points and O'Neal added 17 and nine rebounds for the Pacers, who got 35 points from their much deeper bench.

　　While Indiana seemed to have an endless supply of players, Miami was harnessed by foul trouble. The game got away from the Heat when Brian Grant and rookie Dwyane Wade had to sit down in the second quarter and again after Lamar Odom picked up his fourth foul in the third period.

　　Game 3 is Monday at Miami, where the Heat have won 16 straight games. However, Indiana won its only visit to American Airlines Arena during the season.