Ok, i changed my original 75mm throttle body for a true 80mm one.
Now i am noticing two things, a lean mixture in cylinders 7 & 8 and a sluggish rev up between 1500-3000rpm. Should i adjust my ETC? If yes HOW??
would it be simply taking (80/75)-1=0.067 and multiplyin it against my resent ETC airflow?