Ok Gary. How's about this?
I found the J/K cams. Stamped into the right side of the cam, between the cam wheel and the first lobe is:
27A IN.
180 degrees opposite this is: R1
Cast into the cam, on the left side are the letters B and 180 degrees opposite, C.
Base circle: 28mm.
Lobe height: 33mm.
Ex cam: (Stamped) 27A EX. R1 ect,
(Cast): R and C.
Now, the cams that came off the Dot head.
Inlet cam stamping same as J/K cam on right side, but cast in letters on left side are: C and 1.
Ex cam stamping a same as J/K,
but now cast-in numbers are: B and 8. All base circle/lobe heights same on all 4 cams.