I've had the battery disconnected many times, I just swapped the injectors from bank to bank because I have my wideband on the passenger side and narrow band on the drivers side and I wanted to see if the injectors are consistent and they are. So it's not the injectors. I tried several tunes I had in store today and each one definitely had their own personalities. Weird that a few days ago they all seemed to run identical. However even my known richest fueling tune the one from dyno day ran lean once I started driving it. My fuel pressure is good idling and revving up but I can't see what it's doing while driving. Is it possible to have good fuel pressure and have lack of flow getting to the injectors cause by a clogged fuel filter? I will be replacing the Fuel Filter tomorrow just in case. If that's not it I will have to suspect the Fuel Pump. I think I should mention I'm using an aeromotive fuel pressure regulator with guage right on the fuel rail.