1973 Danny Johnson's Roaring Double - a Mind Shredder

A Mind Shredder, two Harley-Davidson engines, each stretched out to 107 cubic inches, power this 460 pound Goliath. The thing has already devoured a quarter mile in 8.51 and its teeth haven't been honed. Does the monster have a seven second future? 1973 Danny Johnson Roaring Double 10-Page Print Article available at www.DadsVintageAds.com CLICK THE PICTURE TO "BUY IT NOW"