By MIKE HARRIS The Indianapolis Motor Speedway was busy on Friday with most of the drivers already qualified for the Indy 500 on the track working on their race setups and 13 others trying to find the speed to qualify in time trials this weekend."At this point in the month, it's not so much about the speed on one lap," said 2007 Indy winner Dario Franchitti, one of 22 drivers who qualified last weekend.