Kyle Busch was fastest in the final Cup practice for Sunday’s race at Auto Cub Speedway.
The Joe Gibbs Racing driver posted a top speed of 185.668 mph.
Busch was followed by the pole-sitter for race, Martin Truex Jr. (185.319).
“We feel OK about it, obviously I’d like to feel a titch better,” Busch told Fox Sports 1. “We kind of slowed up a little bit as the practice went along. I know everybody did but it felt like a couple of guys got closer to us as it went along. We were really good firing off there.”
Harvick, fastest in the first two practice sessions for the Auto Club 400, will seek his fourth consecutive Cup win tomorrow. He had the best 10-lap average at 180.161 mph.
Busch recorded the most laps in the session with 45.
There were no accidents in the session. Kyle Larson did cut a tire, but his No. 42 Chevrolet was not damaged.