i don't have any nb o2 sensors in my exhaust anymore. i run the wb all the time. for some reason when i wire the analog nb wire into the ms it reads much leaner than it really is. i don't know if we could adjust sensitivty or something on the o2 input. i'm also not sure if i wanna run the ms spark after all cause i read that its only good to 16psi and i'm at 15 now and want to hit 20 next w/e. i'm gonna use a snow kit if the ms wont do it. my tune is really smooth.

got that megasquirt!