[Halon]

First question I have is if you are getting any kind of check engine light?

I think if I were you, right now I'd just go over the car completely after hearing about this, and the issues you stated in the other thread. I wouldn't trust that anything is right on that car.

I'd start with the timing belt, make sure all the marks line up. Then I'd check ignition timing. Then a boost leak test. Then put in new plugs, wires, air filter, and change the oil. Then just go over the entire engine bay and just try to see if anything doesn't look right.