thank you for the info. I will try the links. I had already tried the first one and found all that you had mentioned although the indication of and original 326 is interesting. I believe I'm starting to realize a previous owner was modifying it to look like a 400. It has the emblems saying as much. I'm almost certain the engine is not original and a spoiler is added (which I just learned was not an option!) As for the bad stamp, I could see that and it is possible I attached it here. perhaps I can get a better look at it later.