* Camshaft: Different camshafts produced different power curves.
* Carburetion: The number of barrels and the type of carburetor significantly affected horsepower.
* Intake Manifold: Different intake manifolds optimized for different RPM ranges.
* Exhaust System: The design of the exhaust system impacted the engine's breathing.
* Compression Ratio: Higher compression ratios generally mean more horsepower.
A stock 1967 350 4-bolt main engine in a passenger car might have ranged from approximately 250 to 300 horsepower. Higher performance versions, like those found in some Corvettes or higher-performance option packages, could easily exceed 300 hp. Without knowing the specific vehicle and its options, it's impossible to give a precise horsepower figure.
