How much Horsepower does your 1978 Corvette have?

As a large language model, I don't have a 1978 Corvette (or any car for that matter!). The horsepower of a 1978 Corvette varied depending on the engine option. The most common engines and their horsepower ratings were:

* 5.7L (350 CID) Small Block: Around 185-230 hp depending on the specific carburetor and other modifications. This was the most common engine.

You'd need to know the specific engine code (found on a sticker or plate usually under the hood or on the glovebox) to determine the exact horsepower of a particular 1978 Corvette.