I used to have a cut/paste rant about that book on hand for when people asked about it. I can't find the rant.
It's not a good book because the title is bad. The title should read "How to Build Modify and Tune Your 2.8 While Rendering it Illegal for Street Use."
It's about modifying the 2.8 and running an aftermarket carb on it. He doesn't like fuel injection. It's useless unless you are building a 2.8 with an aftermarket carb.
I'm amazed by the amount people will spend on that book. I've seen them go for over $100 on Ebay.
People have argued that the book is worth owning for the alleged templates for porting your heads. I say--bullshit. You'll kill your heads if you hold that book up and start grinding on them. They are suggestions for someone with experience and hopefully a flow bench.
A better book is
Charles Probst's fuel injection book. That's where a modern engine tuner starts.