Yeah, it looks out of place doesn't it? My understanding is that although the car was taken apart in 66, that the builder continued to work on engines. He had big collection of Mopar. There is a Hamber that made some "one off" pieces for the blower (In fact, the Hamber's name is engraved on the blower - per Ron's request). He said the last time he saw the engine, it had eight deuces on it, but he never heard it run. The date on the engine is '57 and the family said he didn't believe in boring anything over 10, so they expected that I would find a standard bore on the engine when I take it apart? Keep your fingers crossed!