OK so I went and unplugged everything and cleaned up all the connections on the intake manifold side and the connections to the fuel pump. No dice.
I did take two videos.
First vid is just taking off and hitting that point where it goes lean
Second vid is going past the lean point and up to a higher RPM. notice how it hits the lean spot then works itself back to rich?
hmm..dude i honestly have no idea whats wrong with your car, nothing really matches any of the symptoms in the service manual
does it drive rough or just leans out in that spot and then goes back to rich?
after driving my car more, i noticed a HUGE difference in inital starting, it used to start, then stutter, die, then i have to start it again, same thing, then start for the 3rd time and it would stay on
now first time i start it, it stays on, idles where it should, vac readings look good and everything
do me a favor though, make a boost leak tester, hook it up to your piping right where u hook it up to the SC, and then test for leaks
i had a ton of leaks around the injectors, even though my car read good vac, so this COULD be your problem not 100% sure though
also take your PCV out and shake it, if it makes a rattling noise its good