To be certain, I recommend:
* Checking your owner's manual: This is the best place to find a diagram showing the location of all major components.
* Looking at a repair manual specific to your year and model: A Haynes or Chilton manual will have detailed diagrams and instructions.
* Visually inspecting the fuel lines: Trace the fuel lines from the tank toward the carburetor. The filter will be inline somewhere along that route. It's usually a cylindrical canister, often metal or glass, with fuel lines connected to both ends.
Be cautious when checking around fuel lines and the tank area. Fuel is flammable, and you should never work near it with an open flame or sparks.