High-Performance Cams and Valvetrains by Billy Godbold explores the science and optimization of camshafts and valvetrain systems for performance engines. Drawing from 25 years of industry experience with Comp Cams, Lunati, and others, Godbold explains how precise valve timing maximizes engine performance across a wide range of applications—from small go-kart engines to 1,500-hp NHRA Pro Stock engines. Using analogies and clear explanations, the book covers configurations involving intakes, headers, superchargers, turbochargers, and modern EFI setups. Whether building a performance engine or understanding the mechanics of valvetrains, this resource combines theory, technology, and practical techniques to simplify complex concepts without sacrificing detail.