There's a couple other books out there too.
An old one called "Performance American Style"
and another old one called "AMC Power Book".
and an independent one called 'BJ Builds an AMC", maybe on ebay.
Many of the AMC parts vendors have the PAW book.
Eddie Stakes at PlanetHoustonAMX has the "Power Book" and has it on ebay sometimes.
www.americanpartsdepot.com and www.kennedyamerican.com
and others would have the PAW book.