Re: Ls Swap question
If your doing your own harness, I'm not against keeping the rear o2 pigtails. It lets you run downstream sensors if you ever do choose to run a catalyst. The wiring itself can be tucked away.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING 
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