I recently acquired a Ford 9N tractor which was converted to take a 254 flat head six. The tractor has a Chrysler Ball & Ball carburetor which is only about 1/2" below the hood without any air cleaner, I'm assuming at least partially due to an adapter of some sort, so I don't have any air cleaner and have to cover the intake when the tractor is parked. Although it seems to run quite well I really would like to put an air cleaner on this.

I am trying to find out what the original carb for engine was? Maybe a Ford or Holley 94 AA-1?

Is there a different model that has a lower profile which I could mount directly to the intake manifold without the need of an adapter. Maybe a Holley 1904?

Thanks all,
Ethan