With NASCAR officials focusing on engine changes in the Sprint Cup Series*for 2015 that will result in a reduction of horsepower, such a move should involve "a restriction on the intake side," according to Sprint Cup Series team co-owner Jack Roush. "(It is) straightforward and it is easily reversible if you decided that the quality of the racing was hurt by it," Roush told NASCAR.com during the Sprint Cup Series stop at Darlington Raceway on April 12. More...