Cannon also ran in the Continental Series (Formula 5000) in 1969 and 1970 where he was champion in 1970, driving for St Louis trucking magnate Carl Hogan, in the Hogan-Starr racing McLaren M-10B.
Cannon tamén correu nas Continental Series (Formula 5000) en 1969 e 1970, onde foi campión en 1970, pilotando para o magnate dos camións de St Louis Carl Hogan, no McLaren M-10B de Hogan-Starr.