In their victory over the Arizona Cardinals a week ago, the 49ers put the game away with a long, 18-play, time-killing touchdown drive.It was an old-fashioned power-football march, and afterward head coach Jim Harbaugh said, "We grinded some meat."On Sunday against the Tennessee Titans in Nashville, the San Francisco butchers were at it again.The 49ers won their fourth straight game and improved to 5-2 overall, with a 31-17 decision over the Titans by again using an old-school, meat-grinding ground attack to set the tempo.On San Francisco's first possession, it drove 65 yards from its own 9-yard line in 12 plays to take a 3-0 lead on Phil Dawson's 44-yard field goal. Nine times on the drive, the 49ers ran the ball.The Niners then went up 10-0 in the second quarter by going 80 yards in eight plays, capped by quarterback Colin Kaepernick's first rushing TD of the season on a 20-yard keeper.Then, after going in at halftime up 17-0 on a short TD drive set up by Tramaine Brock's interception of Jake Locker, the 49ers ate up 7:40 on a 12-play, 79-yard drive that ended with Frank Gore's second 1-yard scoring run of the day.That put the 49ers up 24-0 and essentially sealed the victory...