Carey Price outplayed Tuukka Rask to lead the Canadiens to a 3-1 win over the Boston Bruins in the deciding seventh game of their Eastern Conference semifinal series Wednesday night at the TD Garden. Price made 29 stops, including a game-saver on David Krejci early in the third period with Montreal nursing a 2-1 lead. Price sprawled to clear the rebound of Krejci’s shot and had luck on his side when Jarome Iginla’s backhander hit the post. Max delivers: For the second consecutive game, Max Pacioretty came up with a big goal. Afer Dale Weise gave the Canadiens a 1-0 lead at 2:18 of the first period, the Bruins picked up the pace in the second period. But Pacioretty put the Canadiens ahead 2-0 at 10:22 of the second period. Brendan Gallagher set the play in motion when he battled to keep the puck in the Bruins zone and David Desharnais set up Pacioretty, who beat Rask with a one-timer on a bouncing back. Canadiens strike first: The first goal has been crucial in the second round of the playoffs and Montreal got off on the right foot when Weise scored his third goal of the playoffs. Brandon Prust chased down a loose puck in the corner and Daniel Brière spotted Weise open in front of the net.