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Competition Cams SK11-568-4
Nitrous HP 240/253 Hydraulic Flat Cam SK-Kit for Chevrolet Big Block 396-454; Pro Street applications w/ multi-stage nitrous kits, 671 blower or Vortec Supercharger and 3000+ stall.
Competition Cams SK11-572-4
Nitrous HP 250/264 Hydraulic Flat Cam SK-Kit for Chevrolet Big Block 396-454; Race only, multi-stage kits w/ 871 blower, needs good heads, intake, gears and 3500+ stall.
Competition Cams K11-411-8
Nitrous HP 230/242 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454; High performance street with 150+ hp nitrous kit or small supercharger, 2400+ stall and lower gears.
Competition Cams K11-414-8
Nitrous HP 242/254 Hydraulic Roller Cam K-Kit for Chevrolet Big Block 396-454; 200+ hp nitrous system, 671 or larger supercharger, 9.5:1+ compression, 2800+ stall.
