Concerns About my new 64 Barracuda

They should be the same for 64 and 65, since a 64 Barracuda is actually a 64 1/2, and is more like a '65 Valiant than a '64. You may be right about the engine code, but there were other "holes" in that decoder. I'll keep trying to find the one I used, I remember it being a lot more user friendly.