That is way too advanced to implement on a 70's era engine. I'm just looking to correct/change the basic timing. measuring the cam hub diameter the math works out to .13mm per deg and the 10deg woodruff key is 1.4mm. I had my block decked and I'm using thinner head gaskets so my cam timing is going to be way off-beyond the range of offset woodruff keys alone.

__________________
Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT