Harley-Davidson Shovelhead and Evolution Big Twins '70 to '99 (Haynes Service & Repair Manual): Schauwecker, Tom: 9781620921739: Amazon.com: Books
Donny's Unauthorized Technical Guide to Harley-Davidson, 1936 to Present: Part I of II-The Shovelhead: 1966 to 1985: Petersen, Donny: 9781475942828: Amazon.com: Books