How many turns out from the stock setting for the low end are you running? Stock setting is flush with the plastic control arm correct? I have mine about 2.5-3 full turns in and still runs bad on the low end, but transitions to high end real well. I have had about a gallon and a half through it, but the low end is still 2500 rpm or more, anything less and it does. I am running 15% fuel and an OS F plug. Thoughts?