ok, firstly thanks for all replies!
- cam moves freely
- measured the cam: 1.165 (29.591 mm) & 1.488 (37.759 mm). Would that make .485 lift (12.31 mm)?
- it has "B" & 72 deg stamped on back. 272?
- rocker arms have various markings; "s12", "s16", "s80", "s-95","s84","75:" and 2x"5:.", What does that mean?
Will measure cc as soon as possible. Only head is shaved and it was bought like this. I have a stock, untouched l18 in my stock 910
good read on olddatsuns!