Looking for a book on automotive calculations

I was flipping thru an ad such as eastwood or maybe even summit, not sure. I came across a book that was being advertised for sale that advertised the correct way to find your correct axle ratio with your wheel/tire combo, correct displacement after boring, etc.. Does anyone on here know what I am refering too ? Can someone point me in the direction on who has this book. For some reason after I told myself to make a mental note to order the book, I misplaced who was selling it...

Thanks

 

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Here is one that may work for you......Auto Math Handbook HP (Paperback)
by John Lawlor

http://www.amazon.com/Auto-Math-Handbook-John-Lawlor/dp/1557880204

 

much appreciated. I think that will work.

Keep 'em coming if there are some other good suggestions.

Thanks

 

Better than a book is this online link for all types of calculations.

http://www.csgnetwork.com/converters.html

 

I have found this website helpful for automotive calculations,,,, http://www.bgsoflex.com/auto.html

 

and I wasted 4 years at engineering school....