With a rumble of Harley-Davidson V-Rod thunder the world champion Harley-Davidson Screamin’ Eagle/Vance & Hines drag racing team will open the defense of its latest title at the 47th annual Amalie Motor Oil NHRA Gatornationals in Gainesville, Fla., March 17-20. The event traditionally launches the Pro Stock Motorcycle season for the NHRA Mello Yello Drag Racing Series.