So, if I go with Champion N12YC plugs, and use Aviation Fuel in my 340, it should run very good ,,,yes ? or should I use 93 octane instead of aviation fuel
aviation fuel is designed to atomize at low temps/altitudes and evaps even faster under a hot hood!. I am sticking with alcohol free 91/93 even that's bad compared to the gas they sold 50yrs ago for these engines!!!