Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455 Performance level 4 - Ultra-Performance Compu-Pro - The following grinds are best suited for dual purpose hot street/drag strip situations. These cams exhibit strong mid-range and top end torque and horsepower. Headers, dual exhaust, larger cfm carburetor, performance ignition and 11:1 compression are a must. Cylinder head modifications would be beneficial. Use with standard transmission or automatic with high stall converter. Low gearing a must. INT/EXH - Dur @ .050” Lift: 239°/241° RR: 1.5/1.5 Gross Lift: .500”/.500” LSA: 112° RPM: 2000-2200 to 6200 Redline: 6500 Learn More
Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455 Performance level 3-4 - High Performance Compu-Pro - Intended for the performance oriented hot street application. These cams offer an extended rpm range with emphasis on upper bottom to top end power (strong mid-range). Performance gears, headers, dual exhaust, larger than stock cfm carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required. Works well with automatic transmission if matched with proper ring and pinion gears and/or high stall converter. INT/EXH - Dur @ .050” Lift: 228°/235° RR: 1.5/1.5 Gross Lift: .479”/.494” LSA: 112° RPM: 1600-1800 to 6200 Redline: 6500 Learn More
Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455 Performance level 3-4 - High Performance Compu-Pro - Intended for the performance oriented hot street application. These cams offer an extended rpm range with emphasis on upper bottom to top end power (strong mid-range). Performance gears, headers, dual exhaust, larger than stock cfm carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required. Works well with automatic transmission if matched with proper ring and pinion gears and/or high stall converter. INT/EXH - Dur @ .050” Lift: 221°/229° RR: 1.5/1.5 Gross Lift: .456”/.468” LSA: 112° RPM: 1600-1800 to 6200 Redline: 6500 Learn More