It runs, Part II, look at what I found! and some questions Options

[3liter914-6]

Well after a thorough cleaning of the combustion chamber and swapping around of injectors and and wiring to no success, I spun the engine over by hand to figure out when the air was leaking past the valve. A few times around and it became pretty clear that if any air was getting by the valve while it was close it wasn't much and it wasn't until the valve started opening that a rather strong puff of air could be felt. So it seems like whatever crud was in there it isn't or wasn't causing the intake valve to not seat. Hypothesizing that perhaps it wasn't a problem with the intake valve, but that the exhaust valve wasn't opening for some reason I drained the oil, lowered the engine (again) and found this:

[3liter914-6]

Pretty isn't it?

So I just want to bounce some things off of you guys. There's no way the rocker could have just broken randomly and somehow the bits and pieces then migrated their way into the combustion chamber, right? Obviously whatever it was that chewed itself up in my combustion chamber and is now completely gone, came into contact with the valve and thus broke the rocker. Is there any chance that the valve isn't bent? I seem to remember the rocker being sort of a fuse that often will break before the valve will bend, but is that just wishful thinking? Obviously the exhaust port is sealing itself up pretty well otherwise I wouldn't be getting such forceful exhaust out the intake, right? Is it in no way odd that something completely reduced itself to sand grain sized metal shavings and there was no damage to either of the spark plugs in that cylinder? What is the recommended course of action from here? Should I tear the whole thing apart and see what's up or should I just pop in a new rocker and get some compression/leakdown figures and go from there?

Thanks!