His photography archives include approximately 300,000 racing scenes from NASCAR stock cars and trucks, NHRA and IHRA drag racing, IMSA and ALMS sports cars, AMA Superbike and Supercross motorcycles, WoO and USAC sprint cars, STARS and UMP dirt late models, and more. He has been the Chief Track Photographer at many of the nation's leading racing facilties, including the Bristol Motor Speedway and Road Atlanta. In the 1980s he was a NASCAR photographer for the series sponsor and the sanctioning body. He is currently the chief track photographer at the Las Vegas Motor Speedway. Allio also conducts auto racing and general motorsports photography classes,