winged 600cc mini sprints

https://nebula.wsimg.com/4ddf308ee0a41704986308c1490be7eb?AccessKeyId=C1AD9A1B0D61EFD3E05C&disposition=0&alloworigin=1 Riverside International Speedway begins it's 70th season of Thrills Chills and Spills on April 7th. Riverside has weekly shows consisting of MSCA 305 Winged Sprints, Limited...