Norm Nelson has come in third and even second in the grueling Cannonball Motorcycle Endurance Run across America, both times on 1920’s-vintage BMW motorcycles. But as the St. Augustine man saddles up at 8:45 a.m. Saturday in Atlantic City, N.J. for his third Cannonball, he is hoping his newest - and oldest iron steed - will bring him in to Carlsbad, Calif.