Hello.

6F07A is a 66 model car, coupe (07) 289 4bbl (A)
65A/standard interior coupe, P/ Antique Bronze, 26/ black standard interior, 15L/ scheduled production date of november 15th, 1965, 1/ 3.00:1 rear end, 5/ 4-speed manual transmission, C6ZF-A is the carb used on an A code with a manual transmission, 5KB is the date code,with 5 meaning 1965, K means october, and b means the second week of the month. On the engine tag, the 289 is the displacement, the C means the motor came from the Cleveland plant, the 66 means that it's destined for a 66 model car, the 10 is the design change level, the 5L is when the motor was actually built which is november of 65, 250-S is an engine plant code which means that this motor is an A code (289 4bbl/premium fuel) C5AE-6015-E is the casting number for a 289 engine block, 5K26 on the intake is a date code, october 26th, 1965. This is all perfectly consistant with what an 'A' code Mustang with a scheduled production date of 15L would have left the factory with.
