here is a good view to get little better idle how different the two are made on the front side of the cam gear.
next step was to mount this in my 4 jaw and that wasn't working out they way i wanted it to be mounted in so the 3 jaw went back on the lathe and did some finessing with some shims and got it with in a .001...........good enough for me.
first step was to knock off the vertical bearing surface.
and then start to make the new bearing surface.
part came out nice.
hard part was to get the correct length from end to end and i got it.
stock vintage cam measurement
new modified ovrm cam.
and yes i do plan on using the tecumseh hot coil that will advance the timing a lot. making it just little harder to pull over when not using a compression release cam with it.