Problems with 360 LA distributor

There should be a clip that holds the advance cam onto the main shaft, It is under the rotor. Curve is what the ignition is set to run the engine the best. That one in the pic is probably a whole different curve since the numbers are so far apart. It might run ok or be a dog. Kind of a crapshoot without looking it up. Let me find a picture of the clip. Sleaving that I doubt it. It is machined to tolerance. I have never done it just not worth it to me since I have access to the parts. Bet there are not to many over there to choose from.