Solid: Good idle, strong mid-range torque. Excellent Cam for mild street engines. Good idle, strong mid-range torque. Excellent cam for mild street engines. Pontiac 265-455 V8

Hydraulic: Bracket Race with heavy car. 2500-3000 stall 9.5 compression, more Gear, choppy idle. Bracket race with heavy car. 2500-3000 stall, 9.5:1+ compression, more gear, choppy idle. Pontiac...

Thumpr 227/241 Hydraulic Flat Cam for Pontiac 265-455 Thumpr - High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle. High performance street, stock...

Hydraulic: Rough idle, 2500+ stall, 10.5:1+ compression, 3.73 or lower Gear. Magnum Muscle for: 400c.i., 1968 RAM AIR IV, factory 366 HP, 400c.i., 1969, factory 345/370 HP, 455c.i., 1970, factory...

Hydraulic: Choppy idle, increased compression advised. Needs 2500 stall and lower Gear, use headers. Choppy idle, increased compression advised. Needs 2500+ stall and lower gear, use headers. Pontiac...

Solid: Mild idle, street machine cam. Needs increased compression, mild stall and headers. Mild idle, street machine cam. Needs 9.5:1+ compression, 2000+ stall and headers. Pontiac 265-455 V8

Solid: Super torque, 3500 stall, works well in heavy car. Super torque, 3500+ stall, works well in heavy car. Pontiac 265-455 V8

Hydraulic: Rough idle, performance usage. Increased compression required. Needs 3000 stall and 3.73:1 or 4.30:1 Gears. Rough idle, performance usage. Increased compression required. Needs 3000+ stall...

Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Pontiac 265-455. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle. Street/strip, needs 9.5:1...

Hydraulic: Rough idle, 3500-4000 stall, 10:1 compression, 4.10 or lower Gear ratio. Rough idle, 3500+ stall, 10:1+ compression, 4:10 or lower gear ratio. Pontiac 265-455 V8