Aero nut

I am trying to figure out the ratio of glow fuel to gas. I think I understand but I want to make sure. I use Omega Fuel that is 15% nitro with 17% oil. I believe that means the methanol content must be 63%. If I want to get the nitro & oil close to 3% I would mix 1 part glow to 4.5 parts gas. That would give me 3.3% nitro and 3.7% oil. Is me thinking correct on this? If so can I use the same 11.11mm carb on my 31cc Ryobi or will I have to modify it in some way?

Thanks