A friend of mine pulled apart his engine (850) and found the cam to be pitted. So he bought a core cam and had it reground. When he brought the reground cam over I thought it looked strange. It was apparently reground to Megacycle specs(?). I'll try to post the specs soon. The lobes are very steep. I helped him get the crankshaft pinion off (thanks @Mike T!) so he could split the cases and get the pitted cam out. Then he noticed the pitted cam was marked Norris SS. So what would you do? I don't know if you can tell how pointy the lobes are in these pictures. It was done by a local company that I suspect is use to doing cars cams and perhaps big four cylinder motorcycle cams. Not sure how familiar they are with Nortons. Reground cam looks odd. Norris cam is pitted.