Standard Base Circle

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 1 - Mileage Compu-Pro - These cams are designed to enhance throttle response and low-end torque in vans, trucks and passenger cars while delivering fuel efficient motoring. High vacuum, smooth idle and maximum fuel efficiency are characteristic to these profiles. Stock or small cfm carburetor, small diameter tube headers, dual exhaust, and ignition rework are recommended for maximum benefit. Intended for low compression engines operating in the “economy zone.”
INT/EXH - Dur @ .050” Lift: 180°/184° RR: 1.5/1.5 Gross Lift: .371”/.384” LSA: 112° RPM: Idle to 3700 Redline: 4200 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 1 - Mileage Compu-Pro - These cams are designed to enhance throttle response and low-end torque in vans, trucks and passenger cars while delivering fuel efficient motoring. High vacuum, smooth idle and maximum fuel efficiency are characteristic to these profiles. Stock or small cfm carburetor, small diameter tube headers, dual exhaust, and ignition rework are recommended for maximum benefit. Intended for low compression engines operating in the “economy zone.”
INT/EXH - Dur @ .050” Lift: 184°/192° RR: 1.5/1.5 Gross Lift: .371”/.395” LSA: 112° RPM: Idle to 3700 Redline: 4200 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 1-2 - Mileage Compu-Pro - These cams are designed to enhance throttle response and low-end torque in vans, trucks and passenger cars while delivering fuel efficient motoring. High vacuum, smooth idle and maximum fuel efficiency are characteristic to these profiles. Stock or small cfm carburetor, small diameter tube headers, dual exhaust, and ignition rework are recommended for maximum benefit. Intended for low compression engines operating in the “economy zone.”
INT/EXH - Dur @ .050” Lift: 192°/196° RR: 1.5/1.5 Gross Lift: .392”/.399” LSA: 112° RPM: Idle to 4200 Redline: 4700 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 1-2 - Mileage Compu-Pro - These cams are designed to enhance throttle response and low-end torque in vans, trucks and passenger cars while delivering fuel efficient motoring. High vacuum, smooth idle and maximum fuel efficiency are characteristic to these profiles. Stock or small cfm carburetor, small diameter tube headers, dual exhaust, and ignition rework are recommended for maximum benefit. Intended for low compression engines operating in the “economy zone.”
INT/EXH - Dur @ .050” Lift: 204°/210° RR: 1.5/1.5 Gross Lift: .431”/.431” LSA: 112° RPM: Idle to 4200 Redline: 4700 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 2 - Power Compu - These cams provide excellent low end and mid range power and extended rpm range for spirited street and off-road driving. A perfect combination of mileage and power. Modifications should include small diameter tube headers, low restriction dual exhaust, aftermarket manifold, increased cfm carburetor and reworked or performance ignition. Increase in compression ratio to 9.5:1 is recommended for maximum output. Works well with automatic transmission or 4-speed.
INT/EXH - Dur @ .050” Lift: 210°/216° RR: 1.5/1.5 Gross Lift: .445”/.445” LSA: 112° RPM: to 4800 Redline: 5300 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 3 - 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: 214°/218° RR: 1.5/1.5 Gross Lift: .456”/.458” LSA: 112° RPM: to 4800 Redline: 5300 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
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: 220°/226° RR: 1.5/1.5 Gross Lift: .462”/.470” LSA: 112° RPM: to 6200 Redline: 6500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
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: 225°/230° RR: 1.5/1.5 Gross Lift: .454”/.463” LSA: 112° RPM: to 6200 Redline: 6500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400  with Small Base Circle
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: 234°/246° RR: 1.5/1.5 Gross Lift: .497”/.504” LSA: 112° RPM: to 6200 Redline: 6500  with Small Base Circle

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Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
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: 234°/246° RR: 1.5/1.5 Gross Lift: .497”/.504” LSA: 112° RPM: to 6200 Redline: 6500 Learn More