knock retard: lean, false, too much timing?

Hi so i finally got my aem wideband installed and my exhaust leak issues fixed. ive had small issues with knock retard since i fired it up but it seemingly got better after tightening up some exhaust manifold bolts and pulling three degrees of timing. i loosened all the bolts and retightened them and moved where the oil dipstick tube i was bolted up and they seem to have gotten worse again. To my poorly-trained-at-tuning eye the afr seems decent albeit not great. it hovers around stoich even at idle. let me post up the log and tune and go check some bolts. Anything stick out to anyone? i see a couple spots where its lean and shouldnt be but the computer is correcting it and its not drastically lean (1.88 volts or 13.75 afr was leanest i saw).
lq4, elgin 1839, 1 7/8 lts
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