I have read all the post on MAF tuning I could find---several tuners (including ZOOMER) recommend setting idle LTFT's at +15 to +16 for cammed cars. Most of the reasoning is that the cam throws off the readings of the O2 sensor by increasing air flow, which makes sense to me. If this is true----shouldn't the MAF be leaned down throughout the full range??
(I don't have a wideband)