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Does the engine run better when the MAF is disconnected? If so you could have a failing MAF. It sounds like you should chase down an intake leak, though. I recommend that you pick up a smoke machine (or DIY it), smoke the intake, and see where the smoke is escaping.
Those cam values aren’t great, but my engine is at -8.25 and -6.25 (I’ll be replacing the pads soon) and has no check engine lights and should pass smog.
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