I found Vw Beetle Performance Handbook by Keith Seume the perfect book for a beginner. It has valuable information on all aspects of building a car Suspension, Brakes, Transmission, and Engine. I will definetly use much of the upgrades he described. Yet I find many of his engine modifications dangerous. What I mean by this is he says for the ultimate motor. Get an 84x94 engine, 44x37.5 heads, MSD 6AL, merged header with turbo muffler, and Weber 48 IDA's. This is all in all good advice yet he completely neglects valvetrain geometry and connecting rods. Without strengthening the valvetrain you will most likely suck a valve putting a piston through the case and wrecking the rod. Without stengthening the rod the most likely reaction to this would be a snapped connecting-rod effectivley wrecking you crank, head, and case. His vague descriptions could ultimately wreck YOUR case, connecting rods, piston, heads, and your bone-stock valvetrain geometry. In summation a good beginner book but his vague descriptions could paint you into a corner. I would definetly recomend you read a more specified book like VW Interchange Manual before attempting any major modifications.