slantsixdan
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Sweet! Clarification: The Super Six was a 2bbl version of the slant-6, available from 1977 through 1982. In 1963, it did not exist. Someone might have retrofitted the Super Six intake, carb, air cleaner, etc. onto your '63, but with such low miles that seems unlikely. Dodges of your year range got a "Charger 225" air cleaner decal, and Plymouths got a "Super 225" decal. Do you have one of those?
Tune-up parts and technique suggestions in this thread. Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download. The engine is almost due for its first valve adjustment. Depending on the production date of your '63, it could have the scarce and interesting aluminum-block 225 engine. Look at the manifold side of the engine block, and count the number of freeze plugs you see. Three freeze plugs = iron engine. Five freeze plugs = '67 or later iron engine swapped in. Zero freeze plugs = aluminum engine.
Tune-up parts and technique suggestions in this thread. Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download. The engine is almost due for its first valve adjustment. Depending on the production date of your '63, it could have the scarce and interesting aluminum-block 225 engine. Look at the manifold side of the engine block, and count the number of freeze plugs you see. Three freeze plugs = iron engine. Five freeze plugs = '67 or later iron engine swapped in. Zero freeze plugs = aluminum engine.