That indicates bad rings.

 

Sadly enough, its been almost a year and I still have not had a chance to work on this. The truck still runs (roughly) and work has taken priority since then. The good news is that I will likely start working the engine over in about a month. I'm living in the Mojave, so it may take some time to get done, but will also allow me to contribute to the build thread. Due to California's great air laws it will stay a rebuild (unless one of you has a Hughes or M1 you want gone) and will be boring in all thngs truly gear head.

 

There is some stuff you can do, that the Air Resources Board won't whine about. Cam, Rockers, bump compression, etc.