LOUDON, N.H. — The most intriguing wrinkle for the Chase may not be which championship contenders are in or out after each elimination round. It could be if NASCAR decides to use a package responsible for a race that drew nothing but rave reviews from the drivers.Goodyear has not been informed the race package that was such a hit last week at Kentucky Speedway will be used for the 10 races that determine the Sprint Cup champion.Greg Stucker, Goodyear's director of racing, said the manufacturer would need to know in about a week if NASCAR would proceed with a request for soft tires that are typically paired with a lower-downforce aerodynamic package.Stucker said Goodyear typically needed 90 days from the date of the decision to produce the appropriate tires needed for each race.