CHEVROLET RACING IN THE VERIZON INDYCAR SERIES IOWA CORN 300 IOWA SPEEDWAY, NEWTON, IOWA TEAM CHEVY DRIVER POST RACE RECAP JULY 9, 2017 Helio Castroneves Puts Chevrolet in Victory Lane at Iowa JR Hildebrand Finishes Second in the Iowa Corn 300 NEWTON, IOWA – Much to the delight of the fans at Iowa Speedway, Helio…