The factory cam grinds are designed for maximum torque @ lower rpm. A cam with more duration/lift will move that torque curve into a higher rpm range and then your motor will be limited by how much air it can get through the T/B and how much it can expel through the exhaust. A bigger cam (duration/lift) without a lower final drive ratio, is not a performance mod! Remember; “Bigger is not better” when it comes to cams on unmodified engines!
