The Stromberg BXOV-2 carbs are an S.A.E. size 2, as are the Carter W-1's mentioned by Joe.
Spacing is 2 11/16 inches.
Neither the Stromberg BXOV-2 380269 nor the Carter W-1 will fit to the manifold you have without either modification of the manifold, modification of the carburetors, or adapters.
In the "for what its worth" category, the only place on the 380269 carb where the 380269 actually appears is on the tag. How many tagged BXOV-2 carbs did you find?
And if your 235 is otherwise stock, then the answer to your question is .................none!
Jon.
Last edited by carbking; 04/30/2021 12:50 PM.