Thanks to everyone for their input. I got it back together and I fired right up. It sounds bad-ass now that it's dialed in right. 
I have no idea what fixed it. I can only assume it was in the valve lash, because I didn't change any parts when I reassembled it.
I'll probably still upgrade my ignition soon. But at least it's running.

I have no idea what fixed it. I can only assume it was in the valve lash, because I didn't change any parts when I reassembled it.
I'll probably still upgrade my ignition soon. But at least it's running.