Ok so I'm looking at trying out some of the corn juice and have been researching some or the things that need to be changed in my tune. I have an LS3 Intake manifold with the LS3 injectors that are at about 41% duty cycle. From what I have read I need to increase the duty by 30% roughly also need to change the Stoich for the E85 and adjust the PE table for it and also fine tune some other things for it. My main question is that I have an AEM wideband that I just use as a gauge it's not hooked to the ECU or hp tuners, can the narrow band thats on the car read everything properly or do I have to have a wideband hooked up? Also am I correct in what needs to be changed? Thanks for any help in advance!