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Headers, dual exhaust, larger than stock carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required.
Mild porting and larger valves will improve performance.
Camshafts use a combination of separation angles, lift, duration and lobe acceleration/ramp rates to create what is called a cam profile.
The profile you choose determines where your maximum horsepower and torque will occur. To get the best performance for your application, the camshaft profile must match your head and valve train components.
These camshafts work well with four-speed manual transmission.
Performance Level 3Level 3 camshafts are designed for moderately modified engines.
Increased compression (9.5:1) is recommended for maximum output.
Modifications that should accompany installation of these cams include small diameter tube headers, low restriction dual exhaust, aftermarket manifold, increased cfm carburetor and reworked or performance ignition.The secret here is to pick a ring and pinion gear set and tire diameter that keeps the engine in its optimum rpm power range.These profiles perform well with four-speed manual transmissions or automatic transmissions if a high stall torque converter is employed.HFTCs & lifters require less maintenance than mechanical camshafts.Hydraulic lifters operate with an internal cushion of pressurized oil.