AUDIO/RECAP: McCune Fends Off Blonde; Wins MSR Firecracker 50 at Owosso July 3, 2016 Jacob Seelman 0 Jimmy McCune and Jason Blonde put on one of the most memorable shows in Must See Racing Sprint Car Series history on Saturday night at Owosso Speedway, with McCune ultimately topping the Firecracker 50 for his fifth victory of the season. Pages : 1 2