Revised schedule for this morning in preparation for the Hy-Vee One Step 250 presented by Gatorade. 9-9:05 a.m. CT: All cars will be permitted an install lap (one time by the start/finish line) 9:05-9:20 a.m.: A driver substitution special session for the No. 18 of Dale Coyne Racing (now driven by Conor Daly) Source; INDYCAR…