2007 ls7 z06 Corvette. Installing ecs supercharger 6lbs. Im currently 2 base speed density. Where should afr target for idle and off boost, under 3k 30% throttle be targeted. Still 14.7, should it be 14.0 or 14.3 for the 10% ethanol in gas nowadays? Or since the supercharger is always running should i target something like mid 12s afr when driving around town? And mid 11s for PE? Thank you in advance for any help