Factors affecting the horsepower included:
* Engine configuration: Different carburetor setups, intake manifolds, camshafts, and exhaust systems all impacted output.
* Vehicle application: The engine's output was often tuned for the specific vehicle it was installed in (e.g., a sporty Camaro would have a higher output than an economy-focused sedan).
* Emission regulations: Changes in emission standards over the years affected horsepower ratings.
To find the exact horsepower for a particular 1979-1985 305 Chevy engine, you'd need to know the specific vehicle it came from and look up its specifications in a factory service manual or a reliable automotive resource.
