Hi all. My timing chain is making some noise i believe. I have two questions. First, if the timing is set correctly, the two notches in the back of the cams should always be in the same relative position. Correct? Mine are not. Second, there is about an inch to an inch and a half of play in the chain between the cam gears. Would this be a good indicator of guide or tensioner failure? Car is idling and running like crap, backfiring, and gas is pooled in three manifold runners. Cam sensor code and knock sensor codes. Thanks for any info! Oh and apprently the car has autotech 262 cams but both ca