Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must have book: Racing Engine Prep

Such a complete guide to engine building; such an old compilation would suggest out-dated information, not at all.! From page one on, it shows, in great detail, why Waddell Wilson engines were such great performers in its era.And yet, a good builder today can build a great, winning engine following this book.This is a must-have guide to, mainly SBC road race build, but with so many added details applicable to other engine brands as well.For me, well worth the wait, and the price.Grab one while they are still around!