Supercharger/NOS Cam - Chevrolet Big Block 309/309

Hydraulic Flat Tappet. Good cam for high performance street applications. Very strong mid range and upper RPM torque and HP. Lunati's version of the Mercury marine 525SC cam. Fair idle. ;Advertised Duration (Int/Exh): 309/309 ;Duration @ .050 (Int/Exh): 230/230 ;Gross Valve Lift (Int/Exh): .519/.519 ;LSA/ICL: 110/106 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: 2000-6000 ;Includes: Cam Only