The aerodynamic rules package that was used for the Daytona 500 remains in place for Sunday’s Aaron’s 499 at Talladega Superspeedway, the season’s second restrictor-plate race. Those rules (for 2003 model cars): rear spoilers must by 6¼ inches tall and 57 inches wide; rear spoiler angles must be minimum of 55 degrees and maximum of 65 degrees; restrictor plate openings must be 7/8 inch. There is one slight modification: rear spoilers must have a minimum thickness of 3/16 inch. Also, the approximate 13.5-gallon fuel cell will again be used.(NASCAR PR)(4-2-2003)
