I'm not sure where this misinformation sheet is from, but not only is it incorrect for the P code for 68/69 340s, it was also recently incorrectly used to assert the G (not F) code was used to indicate the availability of a 318 poly in 1968. It also fails to indicate the use of M to represent special order V8s such as the 440-6 in 69 B bodies and 440 in 69 A bodies.