Tore the motor apart, piston, rings, and bore looked perfect. So good news is I didn't break anything, bad news is I ave no idea why it just randomly lost compression.
A leak down test did verify that the loss of compression was out the crank case (so not a valve/head issue).
Anyways I honed it and re-ringed it and compresison is back up, so I have no idea. I was pretty rich on a few pulls, so I am thinking maybe I washed the bore down.
Seems odd, anyways.
I was out of injector again so I have some 1000cc coming in.
Here is the comparison chart:
I really want to get to the track as well once I break in these new rings.