Didn't Make It Home From Carlisle

domdart said

I replaced the condensor and started it. It made the same knocking sound. The inside of the cap looks ok to me. A toasted rotor could cause it to knock like that? It fired right up and ran. There is nothing hanging from the coil, that is a ridge on the 4 barrel intake.

Click to expand...

Carbon tracking as fine as a line from a sharpened pencil can send that spark where it shouldn't be, but the failing condensor can do the same, if it's lighting off a cyl way too soon it can do damage to that piston/rod as well as the ones on their power stroke on time when that occurs.
Unfortunately, the sound in that vid isn't translating well over My phone, so I'm of no real help there.