up in Canada lists the LeMans cam. You might also try Holman Moody
. It seems to me like Sealed Power/TRW or Mellings made them also, but I couldn't find the info.
I ran one 15+ years ago in a 289 HIPo 64 Ranchero. Really good sound & good mid-range power. Specs IIRC were .510 lift and 318* intake / 304* exhaust duration...