damn, looks like my car is getting this problem
I get a lean spike when cruising at about the 2500-3000 rpm range when I roll into the throttle then it sputters some then clears out but it seems I am running leaner all over than before. Using SAFC I have increased the fuel in low throttle about 13% and this helps but it seems like I keep having to increase it more and more.
I started a thread about it in the na to forced induction area because I am a TT convert.
Weird and a little concerning