I have an old but unused SBC cam in a Sealed Power box but the measured lobe lifts don't match the Sealed Power or Melling specs for a CS274 or CCS2 respectively. The box label shows CS274 on it with what may the mfg date of 4-28-98. The cam was purchased by my neighbor around this time. The numbers on the distributor gear end of the cam are 119306, .001, 2009-3, 11-38-00. Any ideas concerning who manufactured this cam, the specs, and the application?