SKU: 5394290376

Donny's Unauthorized Technical Guide to Harley Davidson 1936 to Present: Volume II: Performancing the Twin CAM

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Description

Donny's Unauthorized Technical Guide to Harley Davidson 1936 to Present: Volume II: Performancing the Twin CAMDonny Petersen offers the real deal in performancing your Harley Davidson Twin Cam. Graphics, pictures, and charts guide the reader on a sure footed journey to a thorough H D Twin Cam performance understanding. Petersen's insight makes technical issues understandable even for the novice. Donny simply explains what unfailingly works in performancing the Twin Cam. This is the second volume of Petersen's long awaited Donny's Unauthorized Technical Guide

Donny Petersen offers the real deal in performancing your Harley-Davidson Twin Cam. Graphics, pictures, and charts guide the reader on a sure-footed journey to a thorough H-D Twin Cam performance understanding.

Petersen's insight makes technical issues understandable even for the novice. Donny simply explains what unfailingly works in performancing the Twin Cam.

This is the second volume of Petersen's long-awaited Donny's Unauthorized Technical Guide to Harley Davidson 1936 to Present. This twelve-volume series by the dean of motorcycle technology examines the theory, design, and practical aspects of Twin Cam performance.
Donny studied privately with Harley-Davidson engineers, having worked on Harleys for over 35 years. He founded Toronto's Heavy Duty Cycles in 1974, North America's premier motorcycle shop.

Donny has ridden hundreds of performanced Shovels, Evos, and Twin Cams across four continents doing all of his own roadside repairs. He has acquired his practical knowledge the hard way. Donny has the privilege of sharing his performance secrets the easy way. Donny will walk you through detailed performancing procedures like headwork, turbo-supercharging, nitrous, big-inch Harleys and completing simple hop-up procedures like air breathers, exhausts, and ignition modifications.

Donny Petersen feels honored to share the wealth of his motorcycle knowledge and technical expertise.

Binding Type: Hardcover
Publisher: iUniverse
Published: 12/24/2008
ISBN: 9780595515165
Pages: 740
Weight: 2.71lbs
Size: 9.00h x 6.00w x 1.75d
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SKU: 5394290376

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Michael Grant
Bozeman, US
★★★★★ 4
Good stuffed animal toy
Color: gray & blue, Color: gray & blue
This is a good toy. But it's not big as the picture shows it's rather small. Looking for bigger toy.
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Reviewed in the United States on May 17, 2026
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Leslie Van Dyk
Lexington, US
★★★★★ 5
My dog loves this guy!!
Color: gray & pink
This is the cutest little guy and my dog loves him. He knows him by name, he is tough and holds up incredibly well. My dog can give it a good chew but no problem! Make more cute ones and we will give them all names for him to play with.
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Reviewed in the United States on April 24, 2026
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Ellie Calles
Birmingham, US
★★★★★ 5
She liked it.
Color: gray & pink
My dog loved this, its small, I was expecting bigger but its cute. She likes playing with it.
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Reviewed in the United States on May 22, 2026
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Nightingale1221
Natrona Heights, US
★★★★★ 5
Cute and well loved.
Color: gray & pink, Color: gray & pink
My dog gives this 5 stars because she loves to destroy stuffies and this was no exception. She immediately removed the ears and tail, along with the little nubs that were supposed to be nostrils. I give is a few points because she still hasn't removed any legs. I thought it was so cute, and it is far less cute since my dog has had her way with it. She still loves it however…so it is a winner in our book. The photo is after only a couple hours of play
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Reviewed in the United States on November 9, 2025
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Rachel
Waukegan, US
★★★★★ 4
Not for big dogs
Color: gray & pink
This toy is holding up well most of the dog I have are in pieces all over the house
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Reviewed in the United States on June 6, 2026

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