From Columbus,OH USA, I drive a slant 6 '63 Dodge Dart GT convertible & was wondering if you have any suggestions for a rebuild that would update the technology during the rebuild that would bring the standards of the engine up to at least as current as possible for modern fuels, etc. If you haven't rebuilt your engine, then thnks for what suggestions you can recommend. Love the Throaty Sound of your add on speaker device for us slant 6 owners. Where can I go to get one of these dudes? Thanks, BILL -Cols,OH USA. [email protected] if direct contact necessary.