Be careful about using just any 235 distributor in a 216 engine. The 1953 one you are using should be fine. The later 235 distributor used a cast iron drive gear that matched the camshaft material. The 216, and I believe 1953 235's, used forged iron drive gears. There are likely some exceptions for 1953. The forged drive gears from the 216 can be easily swapped onto a later 235 distributor and that can then be used in a 216 engine.
