Decided I would try 01 tool steel for my cam. I see no reason why it wouldn't work. I took measurements off of the existing cam (which does have correct lobe profiles, just incorrect front cylinder timing) and got an overall diameter of the lobe area. I also pressed the drive gear off of it so it would be easier to measure. What I am doing now is duplicating every part of it that is symmetrical on my lathe. The only other things will be shaping the individual lobe profiles and heat treating it. Here are some pics:
Messed up cam with gear removed.
Messed up cam next to my bar stock for new cam.
coming along.... tool steel mills slow and hot..
Turned around in the lathe to get the other end. 4 lobe "blanks" done!