Rough idle turned to crank then ka-thunk

67Dart273 said
Looks to me like it's time to pull the dist and inspect the drive gear. If that is OK time to evaluate the cam timing

Any idea of the miles on the engine or work that has been done?

I have pulled the dist and the teath are all there but have a good bit of were in a section to me it looks like a replacement scenario but I'm not sure