It's still running rough, will idle, but with an miss, the exhaust has a slight pop, I tried the carb mixtures nothing, I noticed the 2 plugs were normal color the rest were like they came out of the box new.#1 & #4 I did open up the carb and checked the floats both were out of adjustment again, I reused the air horn gasket and the base gasket. Maybe a vac leak even though tight?