If you do not have a wide band O2 reader, get one, there very affordable & you do not need to take out your plugs to read them. Well,, for the most part , you do not need to read your plugs. Maybe to see if you are detonating.
O2 wide bands are low in price & worth every penny to have one.
It will really speed up the tuning process & take out the guesswork.
MBHD
