the balancer has a new key in it. I had the balancer off when I swapped the cam out. Maybe it wasn't 50, but it was way up there at 40 at least. I now have it right at 10,(I just ran it again and checked again), but it was way up there initially.

The only thing that may have happened was some interference with some other plug wires on the timing light. At first I had the clamp on the wire right up at the distributor, but I noticed the timing was jumping all around so I thought other wires may have been triggering it. I then moved the clamp right down in front of the plug.
This was after that initial reading and an adjustment on the cap.
I did however have the cap location marked and the mark is now way off from where I have it now at 10 degrees.

I'm positive my balancer and timing tabs are correct because I remember from way back when I had the heads off I checked it to make sure it was really TDC when it read TDC.

I don't know, but it seems to be running ok now, I have about an 800rpm idle, it is a little rough when it's cold but smooths out a bit after warming up. It sure shakes a lot though at idle.