thanks guys, good info!
i am goin gto move the act sensor to the air tube tomorrow.
One more question, since the engine i put in was out of a 2000 explorer, it has the gt40p heads and intake. so, there was not egr set up. So right now, i have the egr installed but i have the electrical connector disconnected and vacuum lines disconnected.
Just wanted to throw that out there to see if that could be an issue that would cause the bucking? I have been doing a ton a research on eger and gt40p heads but am still a little confused. It seems if i have the eleectical connector disconnected and the vacuum lines disconnected it is not functioning anyways and should cause a problem.
I am going to pull a plug or 2 tomorrow to see if i am running rich.