Chastain, who finished runner-up to winner Chase Briscoe in the spring race at Phoenix, led the way in Friday’s 50-minute session with an average lap speed of 133.239 mph.<br>The first-year driver for Trackhouse Racing earned his first two series victories this season and is looking for his first series title in Sunday’s race.<br>“I have complete confidence that the speed in our car will be ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/ross-chastain-tops-phoenix-cup-practice-championship/10395258/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

More...