They would probably work better than over-carbureting it with two of the Rochesters or Carters built for single-carb use on a 235. The only downside would be trying to find two well-matched examples of a carb produced for an engine that was last made in 1940. The 3-bolt base pattern will require an adapter for the Chevy intake manifold. The name should be spelled "$tromberg" when you start trying to find repair parts, also! A pair of small-base Carter carbs for a 216 would be more common and less expensive, IMHO.
Jerry

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