adrian, I finally weakened and consulted B&S. Here is the illustrated parts list for your engine:
http://bsintek.basco.com/BriggsDocumentDisplay/default.aspx?filename=Z6kswDVJ1DajI
Here is the Owner Manual:
http://bsintek.basco.com/BriggsDocumentDisplay/default.aspx?filename=msozHP-K_ny7tH217FzoPu

As you can see, it had a large one-piece flo-jet, bolted directly to the cylinder with a standard flo-jet gasket, without any kind of intake pipe. The sketches and part numbers for the governor parts are there too, and you can see the air cleaner.

Also, even the gravity feed model had an in-hose fuel filter, so I just lost an argument with aldot in another thread. It even looks like the one igor54 said it would be.