Putting the car into neutral does help a lot, and eliminates all of the "vibro-mode." I'm gonna see if the Ford Racing wires, once the mailman delivers them, will also help my idle, because mines are kinda old (7 years now).
+Ford Thunderbird 1997 - V8 +Ford Contour 1995 GL [REST IN PEACE :(][Champagne|ATX] -9mm Ford Racing wires -CTA Intake Kit -Removed exaust resonator