Matt, I'm trying to understand your statement in my simple brain....

I understand how it will run lean with respect to the air/fuel ratio, the higher (almost double) oil ratio will provide a very nasty environment for ignition, so you would not get such a clean burn, most likely gum up everything in sight. Is this most likely what will happen?

If this does happen, then it would be very hard to diagnose the jetting or running conditions as you're in a contradictory state.....lean but fouling plugs?