He drove in the USAC Championship Car series, racing in the 1961-1964 seasons, with 49 career starts, including each Indianapolis 500 contest in that span. He finished in the top ten 25 times, with one victory, in 1962 at the Arizona State Fairgrounds in Phoenix. His 7th-place finish at the 1961 Indianapolis 500 earned him co-Rookie of the Year honors with Parnelli Jones.