Hello, 805moparkid. Per your listed chart, I found a stamped number just like you indicated below the 1st spark plug. We have a '65 Barracuda /6 225. The number stamped is "A 225 1 18 2". I decode this casting number as a 1965, 225 ci that was stamped on January 18. Would you agree? But what is the last "2" number indicate?
Thank you so much!
