Ted,
The Shop Manual shows/mentions no gaskets.
However, I'd say that almost everyone uses a gasket between the carburetor and the spacer/insulator. Be sure that there is a notch in the gasket to match the hole in the base of the carburetor.
The gasket between the spacer and manifold is probably not used by a majority of people, unless there is a leak or unless they want a failsafe against a leak. Using a gasket in that location causes no harm.
