How much horsepower does a GM 4.3 liter throttle body engine have?

The horsepower of a GM 4.3L throttle-body injected engine varied significantly depending on the year of manufacture and the specific application (truck, van, etc.). There's no single answer. You'll find outputs ranging from roughly 160 hp to over 200 hp. To find the exact horsepower for a particular engine, you need to know the year and model of the vehicle it was in.