* On the frame rail: This is a common spot for many vehicles of that era.
* Near the carburetor: If it's a carbureted engine.
* In the fuel tank: Less common for this model year, but possible.
To find it definitively, you'll need to:
1. Consult your owner's manual: This is the best resource, if you have it.
2. Look at a repair manual specific to your 1976 Buick Century: A Haynes or Chilton manual will show diagrams and describe the location.
3. Trace the fuel line: Follow the fuel line from the fuel tank towards the engine. The filter will be somewhere along that line. Be careful as fuel lines can be under pressure even after the engine is turned off.
Keep in mind that the fuel filter might be integrated into the fuel pump in some configurations. Visual inspection will be necessary to be certain.
