Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Porsche Dealer must have written this book!

I just bought a 1983 944 and I was hoping to get some information on timing belt replacement from this book, but it is way too general. In my quest for an adequate manual I could only find one alternative: The factory repair manual at the "bargain price" of $225.00 My advice: before you buy this book, spend the money in phone calls to find a used factory manual!