How much horsepower does a 1976 350 Pontiac engine have with 4 barrel carb?

The horsepower of a 1976 Pontiac 350 with a four-barrel carburetor varied considerably depending on the specific model and options. There wasn't a single horsepower rating. You'll find different outputs depending on the application (e.g., Grand Prix, Firebird, Bonneville, etc.).

To find the specific horsepower for your engine, you need to locate the vehicle's original specifications. The best way to do this is to:

* Check the Vehicle Identification Number (VIN): The VIN contains coded information that can be decoded to reveal the engine's specifications. You can use online VIN decoders or consult a Pontiac parts catalog.

* Look at the Original Owner's Manual: If you have the original owner's manual, it should list the engine's horsepower and torque.

* Examine the Engine Casting Number: The engine casting number (found on the block itself) can be used to cross-reference the specifications in a Pontiac parts catalog or online database.

Without this specific information, I cannot give you a precise horsepower figure. Keep in mind that the advertised horsepower in brochures from that era is often higher than the actual horsepower measured on a dynamometer.