 He did compete regularly in the PCLM series, primarily driving for owners Floyd Johnson or Cos Cancilla, finishing in the top ten in points eight times between 1956 and 1969, with a best points finish of 3rd on three occasions (1963, 1967 and 1968).He had five career victories in the PCLM series, the last one coming at Tri-Cities Speedway in West Richland, Washington in July 1969.Cook scored one career win in the Nextel Cup series at the old California State Fairgrounds in Sacramento, California on September 11, 1960.