First, I recommend that you try the carburetor stock, (as is). Some carbs I have had to raise the lever a slight amount, others were fine without modification. If you can't get it to run rich enough without turning the needles out excessively, or if it won't get rich enough at all, then raise the lever a touch and try again.

The alcohol/nitro/oil mix in a standard glow engine burns cooler than gasoline. The oil itself doesn't burn, it just gets shot out the exhaust and blown all over the plane. Gasoline burns hotter, and most of the oil is burned with the gas. Therefore, if you run an excessive amount of oil in a gas engine, it will carbon up. This will cause problems with the glow plug in the short term, and ruin the engine in the long term. What happens is that eventually, the rings carbon up and stop moving in their lands, or grooves. Then hot combustion gases blow by the rings and burn the oil off the cylinder walls. The engine then seizes up, and it's good bye piston and cylinder, and if it happens on a low inverted pass, maybe good bye to an airplane! Please, use the mixture we came up with; it's a tiny bit heavy on the oil as it is.

AV8TOR