Suddenly super lean while at cruise

[scheides]

Gah. I'm about to kick my car! The issue has re-arrisen. I re-did almost everything I did before, I had found more (small) boost leaks, and whatnot, I've checked a lot of electrical stuff, and now I've noticed this:

As this happens, my tach jumps around spurradically. Not much, but if I'm decellerating, then accellerate, as I accellerate the tach will jump up 150-300 rpms.

Anyone wanna join me in pointing my finger at the Cam Angle Sensor? I just replaced it with another one I got from jet just before the cookout...how often do these things go out?