 Higher lift allows greater airflow; although even by allowing a larger volume of air to pass through the larger opening, the brevity of the typical duration with a higher lift cam results in less airflow than with a cam with lower lift but more duration, all else being equal.On forced induction motors this higher lift could yield better results than longer duration, particularly on the intake side.Notably though, higher lift has more potential problems than increased duration, in particular as valve train rpm rises which can result in less efficient running or loss of torque.