Also, the 67-69 book is also out of print, but used copies are relatively easy to find for less than $35. The author, Rocky Rotella, still has a few copies he was going to sell at shows and swap meets in 2020, but didn’t for obvious reasons. I got a hard bound copy from him for $25 plus shipping.
https://www.pontiacv8.com/blog/2020/...-plus-shipping