[J-Mac]

Ok, I have a video scope. I'll take a look in there for debris. Good Idea.

I'll do some research on the chain ramps. If its that I hope it didn't jump a tooth, guessing that could give me bent valves.

Would valves hitting a piston tie in with the hollow knocking sound that I heard? Is it possible that a ramp would break following some trauma in a cylinder (like a broken spring or dropped valve)?

Thank you all for your suggestions.