'98 6.5 Roe, B & B's, headers, not cats, 3.55's, VEC 3. I can't seem to lean out the AFR. At hwy speeds (60-85) in the 1500-2250 the LC-1 is showing 10.9-12.5. I've pulled the rear O2's out of pipe (still connected though), reset PCM, pulled 35-40% fuel out on fuel % tables between those RPM's and still no change. It actually seems worse. What am I missing? bad rear O2's? Logs seem to be consistent with the WBO gauge. Thanks to those I've talked to about this for your time/help. Any other ideas?