What is the horsepower rating on 1973 olds 350 engine?

The horsepower rating for a 1973 Oldsmobile 350 engine varied depending on the specific model and options. There wasn't one single horsepower figure. You'll need to know more specifics about the vehicle it was in (like the model of Oldsmobile) to determine the exact horsepower. The range was typically in the 150-250 horsepower area, but it could be higher or lower depending on the carburetor, camshaft, and other performance-related options.