Does this tank come with a fuel pump or sending unit?

Tank assembly only — no pump or gauge sender included. You'll source those separately based on your fuel system setup.

What filler neck and cap configuration does this use?

Mounting method and filler type are not specified in the product data. Verify fitment with the seller before ordering if you have a specific cap or neck in mind.

Can I use this tank with a carbureted fuel system?

Bottom-feed design works with gravity-fed carb setups. If you're running a fuel pump, confirm outlet thread size and pressure rating match your system to avoid leaks or backflow issues.