What year is early 235?
Most likely, the 216 manifold will bolt up; and, depending on year, the worse case scenarios is that the intake ports on the 216 could be smaller than the ports on the 235 (depending on year).
The angle of the "down pipe" on the exhaust manifolds might also be different (depending on the year).
What year 4400 and what carb and what air cleaner?
Can you post of photo of the twisted piece?