mx5cartalk.com

Found this on Google in a random search. Did a quick scan on the forum, did not see this.
Not sure if already double posted before.

http://books.google.com.au/books?id=wvn ... e&q&f=true

Keith Tanner works for Flyin' Miata. The full book can be purchased through them or (I think) MX5 Mania. I received one of Tanner's other books (Miata Performance Projects) as a present and it's been quite useful from time to time.