Pony carb's book states as follows for 64 1/2-
289 manual- C4GF-AE or C4ZF-C
289 auto -C4GF-AF or C4ZF-C
289 hipo -C4OF-AL
289 manual C5ZF-C or E or C5ZF-J with the road draft tube
289 auto C5ZF-D or F or C5ZF-K with the road draft tube
289 hi-po 8/64 to 2/65 C4OF-AL with a C5OF-L tag
2/65 on had C5OF-J with a C5OF-J tag
This info doesn't necessarily conflict with anyone elses info.
Pony carbs states their book is not the be-all end-all reference. Just information that is to the best of their knowledge and subject to change.
Hope this helps.