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Title: Don't Waste Your Money!
Review: Nothing even remotely close in this book related to the title,...doesn't show you how to modify much of anything, if anything at all,...even has some incorrect information on it, talking about gas ported pistons, his explanation is totally wrong,...says the reason holes are drilled in the piston top behind the ring is to relieve gas pressure, when in fact you drill holes in the piston top to create pressure behind the ring to increase the sealing pressure. Common sense would tell you there is more pressure on top of a piston than behind the ring to begin with. I would give this book a 1/2 or zero star, but that rating is not available.
