My AFR bounces between 14.9 and 15.5
Could I just have the O2 Sensor in the wrong bung?

At WOT it goes down to around 11.5 or so. (My eyes don't watch the gauges very closely at WOT due to increasing / excessive speed and safety concerns)

So with the three O2 bungs in my Header/downpipe combo,

Is this the correct setup?
Up Stream sensors in collector
Wide band Sensor in down pipe forward of cat
Downstream sensor after cat

 

I think that the bounce you see is just normal. This is what I see also with my car. My AFR bounce even more than that... like between 14 and 16 at idle. I have the 60 lbs injectors by the way...

 

Im going to shake my head then slap u. Hahaha im jk............ Ure afrs are actually good no worries..