Ive got a base tune from pcmforless right now, and open headers.

BLMs at certain points are maxed at 160 on the long terms and ~136/199 for the short terms. occassionally the left bank will dip down to normal or rich.

The motor was never revved over 2000 rpm.

Is this b/c of the o2 sensors being so close to the air, or a tuning issue?

PS: Amazingly i have NO knock retard except on cranking.

 

i think i might try bolting a piece of pipe up to the collectors tomorrow and see if it is the o2 sensors or not.