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Ike
You have a bank 1 O2 sensor and a bank 2 O2 sensor so you will have bank 1 and bank 2 fuel trim readings.
Another thing you can compare to check cam (valve) timing on a flat six is to compare compression readings from one bank to the other.
Bad cam timing (usually late timing) will show a drop in compression.
I think fuel trims would be a better indicator if the cams are off by just a few degrees.
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