[TampaFla]

Fla. rules are "slightly" different from rules in other states. If you title it in Fla., what applies in CA won't matter.

Only advantage I could see titling a car as a 65 might be insurance (and probably not that even). Polution regs for a 65 are exactly the same as for an 05 (none).

Fla. has two categories for this "type" of car (remember even original Cobras were assembled cars not manufactured cars, i.e., Shelby America did not manufacture the cars but "assembled" them). Fla. has separate rules for assembled cars (called either kit cars or replicas). Read the rules "carefully" (they are online). Each has its advantages and disadvantages.

There are states which still "title" the car based on the year it's a replica of, but only advantage I've heard of is getting "antique" license plates.

If you plan to take the car out of Fla. you may find having a Fla. title "1965 Replica Cobra" isn't worth $10k in NH.