XFI, 263PHR14 Excellent Response, Low End Torque, Good Power GainsHYDRAULIC ROLLER-Excellent responsiveness and low end torque with good power gains.SpecificationsRPM Range: 1300 to 6500Valve Timing:. 006Lobe Separation: 114°Intake Centerline: 105°Vehicle Fitments: Year Make...