Drag Race Hydraulic Flat Tappet Cam - Chevrolet Big Block 305/315

Hydraulic Flat Tappet. Excellent cam for bracket racing or all out jet drive lake boats. Needs 4500 RPM stall converter, headers, 10.5:1 compression ratio and 4.56 gearing. Works well with nitrous. Rough idle. ;Advertised Duration (Int/Exh): 305/315 ;Duration @ .050 (Int/Exh): 260/265 ;Gross Valve Lift (Int/Exh): .612/.612 ;LSA/ICL: 108/106 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: 4000-7200 ;Includes: Cam Only