However , only two years later , the Formula 5000 category would form the basis for a revived Can Am Series .
In light of the Can Am Series ' folding the previous year , the Formula 5000 Championship became the SCCA 's flagship series in 1975 .
Only two years later , the Formula 5000 Championship   category would form the basis for a revived Can Am Series .
In light of the Can Am Series ' folding the previous year , the Formula 5000 Championship became the SCCA 's flagship series in 1975 .