So i replaced leaky intake and gaskets on my 2003 5.4 e350 box truck this week. Amongst my aggravation of being down a truck and waiting on parts to be shipped, when i finally got down to getting my hands dirty i rushed through got everything off to get job done. Well ..... Now that she is almost back together i did not pay attention to vacuum lines . So my question is. I have two little ports that stick off the side of throttle body housing they point to passenger side , one on top and one on bottom directly over one another. I have a brake booster vacuum line and a fuel pressure vacuum line left to hook up. Im just not sure which goes where. Ive switched them around and it doesn't seem like it made a differece with the way it ran but i would just like to make sure it is back in original home. Ive looked online and in haynes book but no luck. Any help would be greatly appreciated. Thank you.