That would be for the Beaumont style Acadians. Seems to me not all years are the same clock but I'm sure no expert, lots of the guys here will be able to see what the exact application is.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
