Hey everyone, i just recently did an engine swap on my Evo and it's been running a little weird. Initially I had missed two vacuum lines, one directly behind the intake manifold and the other on the actual air intake hose, the car would start but after idling about 30 minutes it would die. I connected those two lines as they're supposed to be but now it'll idle at about 16,000 for a bit and then slowly make its way to 2k. Sometimes it'll still still die, but only about once or twice since I reconnected those vacuum lines. I'm wondering if anyone has any experience with either the dying or the high idle that I can't get to come down.