EFI Retro-Fit Hydraulic Roller Cam - Chevrolet Big Block 301/311

Retro-Fit Hydraulic Roller. Excellent high performance street cam with good mid range and upper RPM torque and HP. Needs 3500-4000 RPM stall converter, headers, 10:1+ compres- sion ratio and 4.10+ gearing. Aftermarket computer modifications and fuel injec- tion upgrades necessary. Rough idle.; Advertised Duration (Int/Exh): 301/311; Duration @ .050 (Int/Exh): 242/252; Gross Valve Lift (Int/Exh): .640/.629; LSA/ICL: 114/112; Valve Lash (Int/Exh): Hyd/Hyd; RPM Range: 3600-6800; Includes: Cam Only