How much horsepower does a 1981 Chevrolet small block 305 four barrel have?

The horsepower rating for a 1981 Chevrolet small-block 305 cubic inch engine with a four-barrel carburetor varied depending on the application (the specific vehicle it was installed in). There wasn't a single horsepower figure. However, it generally ranged from 130 to 155 horsepower. You'd need to know the specific vehicle it came from to pinpoint the exact horsepower rating.