The only 235 to use a cam like the M4F was the Corvette. The M4F is actually slightly bigger than the 261 cam, which works well when used in a smaller displacement like the 235.
There are dozens of people out there using this camshaft, mostly in the later 235's, and I can't say I've ever heard anyone complain about it. Ken, I would suggest that you talk to someone who has actually used it and see what they have to say about it.
Generally, as displacement goes down, the engine will run rougher per a given cam spec.
