Prochargedhemi
If you knew me you would know that my code is never say never with Chrysler. You are also correct in that I do not know everything about the 62-64 Max Wedge cars or the 64 A864 cars that came after them. But I try to keep an open mind and my ears and eyes open. I don't believe I ever doubted the authenticity of your Dads car or any other. But fact is that sometime in the latter part of the 1964 model year they ceased to build Max Wedge cars and began to build Hemi cars at that point it is probable there were both on the line and built the same day. Yes this is speculation as I was not working for Chrysler at that time as I was 9 years old. But the knowledge that I did try to convey to you is fact, like it or not. All the A12 cars have SPD of 329 or 426, if you think they were all built on those dates possibly you are living in the perfect world.