By Kyle Wood Bet on this four-leg, same-game parlay at SI Sportsbook for Game 4 of the Eastern Conference finals between the Heat and Celtics. The Heat stole Game 3 in Boston over the weekend to take a 2-1 series lead in the Eastern Conference finals. With Miami now in the driver’s seat, the pressure is on the Celtics to perform in Game 4 at TD Garden. Both teams enter the game with a long injury list, but the stars are expected to go for this pivotal matchup. The Celtics are sizable home favorites but I’m staying away from that spread. I am, however, combining an over/under pick and three pla…