According to my parts book, that should be a Marvel Schebler TTX-22 carburetor. You should still be able to get a kit for it, I would think. Try emailing Tom at  O'Brien County Implement at <!-- e --><a href="mailto:obci@nethtc.net">obci@nethtc.net</a><!-- e --> , he should be able to help out with the kit, and maybe with the governor parts you are in need of.

You can visit their website at <!-- m --><a class="postlink" href="http://www.obci.net/">http://www.obci.net/</a><!-- m -->