Greg Stucker, right, Goodyear director of race tire sales, and Robin Pemberton, NASCAR vice-president of competition and racing development, speak with reporters at Texas Motor Speedway in Fort Worth, Texas, Friday, April 4, 2014. NASCAR will not regulate tire pressures at the speedway, and if drivers have tire failures during Sunday's race officials believe they will not be able to blame Goodyear. (AP Photo/LM Otero)