Not used on K-code Mustang but posting here due to it's extreme rarity in case anyone is looking...
Likely one of the rarest Ford 4100 models produced, the only known date of manufacture for the C4OF-AT carburetors was the last week of April 1964. These were used only on 1964-1965 HiPo 289 Fairlanes with automatic transmission, and I believe 13 of the 15 automatic 289 Cobras. Will need a complete rebuild but looks to be totally intact including the original tag.
Asking $4500 which includes shipping and insurance. Reasonable offers, interesting trades considered. Please email or PM if interested or want more photos.
Thanks,
Dave