Book arrived Wednesday and I have read it all. There are always topics that you wish were covered better but overall pretty satisfied with it. Doesn't address Melonized drive gears for roller cams, only bronze. Didn't address installing hard exhaust seats in the head. One thing I noted was that it is becoming a bit dated (2009). Lists PAW as a retail parts source. And I am confident that some of the bearing numbers probably aren't available any more. But I would buy it again.