Justin Allgaier perseveres to win NASCAR XFINITY race in Phoenix
March 18, 2017 By Reid Spencer NASCAR Wire Service AVONDALE, Ariz. – Justin Allgaier popped a tire during his celebratory burnout after Saturday’s DC Solar 200 at Phoenix International Raceway. But you can forgive the driver of the No. 7 JR Motorsports Chevrolet if he was a trifle rusty with his donuts—Allgaier hadn’t been to Victory Lane in the NASCAR XFINITY Series since August in 2012 at the road course in Montreal. On a blistering afternoon that brought emotions to a boil at the one-mile race track in the Sonoran Desert, Allgaier sailed away with a magnificent restart with four laps left…