Old Coleman brand name camping stoves
can safely burn up unleaded gasoline in a legal way.

Coleman made a little funnel with a built in filter to fill their stove fuel tank.

If you do this regularly
adding an ounce of Chevron Techron or Regane gasoline fuel injection additive
to the stove fuel tank will help keep the burner holes free of carbon build up.

There are gasoline/oxygen steel cutting torches too.