My 1968 fastback (289 2V) was born January 5, 1968 in Dearborn. The engine date code is 8A2P, which I interpret as January 2, 1968, literally the first working day of the year in 1968. Is it reasonable that my intake (C8AE-9425-B) could have a 1967 date code, such as 7M18 - or December 18, 1967? If so, how far back do you think Ford could reach to put an intake on a very, very early 1968 car? Just days, weeks, months? I ask because while I don't think I have the original intake, I do have my hands on a 7M18 dated intake and a 7E29 - May 29th 1967 intake. I'd like to of course stay in the ballpark of what would have been correct for the build.