i have a 95 M6 car that i did a 355 build on with a CC503 P&P heads 11.5:1 compression well i got an e-mail tune and the car runs great and i have tunercat and tts data master.Well ive been doing some datalogging and on a WOT pass my o2's are hanging at 900-930 does this seem right dont have a wide band to tell in the histograpgh it shows its not lean or rich but from the o2 voltage seems rich any input or diection would be great!!!!

 

That seems like a normal reading.

You can't really get specific info without a wideband though.