Byron, who won the pole for this race a year ago, was among the last cars to complete laps at the end of 1½ hours of practice and with time already expired registered the fastest average lap speed of the day at 94.415 mph.
Teams were split into two groups and each group given a pair of 20-minute sessions on the track since it’s the first road course race of the season with NASCAR’s new aero package in use.
