was wondering if anyone could help me with my 1967 bird. I have a ye code on the front of my block but can't find reference of that code in a 1967. I am assuming that the block is from some other year but would like to know where to start looking. I was a Mopar guy and just becoming educated in the ways of pontiac. It was sold as a 400 but saw a YE code for a 350 too. Any help in which way to proceed would be appreciated. Also the transmission is a 3 speed with but the tag reads 73 P2D........my initial response was WTF...can anyone help me with identifying that tranny too..........thanks