Daniel Suarez led the field in the opening Cup practice Friday at Pocono Raceway with a lap of 171.217 mph.
Kevin Harvick, who was 15th on the speed chart with a top lap of 169.651 mph, ran the most laps in the session with 29.
Final Cup practice is scheduled from 4:05 – 4:55 p.m. ET.
Qualifying will be at 11:35 a.m. ET Saturday. The race is at 2 p.m. ET Sunday.