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I was data-logging my car and I noticed my timing at WOT is 31* on pump 93 and the knock sensors are still adding timing. Is this normal timing or is it really aggressive and unsafe. Currents mods on the car are cobra jet intake manifold, gt500 throttle body, cobra jet cold air intake, LU47...

I installed a pair of stainless works longtime headers. Shortly after my passenger side upstream o2 went out so I replaced both of them. I then got a p2626 code. I also got my o2 sensors angled. What can be causing this code and how can I fix it? also I'm not using any extenders