Maybe a Tilletson. I would also change that rubber gas line connections to fuel injection hose. Reg. gas hose will not hold up with this corn gas. Also i would move the line away more from that exhaust manifold. OMO. ken ct.
It is a Marvel-Schebler if it has a patent # 1536043 on the bowl. Also the brass Gas Adjusting Valve (GAV) is hex shaped. Here is a link to a site that lists the articles on Marvel-Schebler in the restorer magazine. http://www.model-a.org/marvel_schebler.html
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