It'* the magic thingy that sends fuel to each fuel injector. It'* over and around the black plastic upper intake manifold. Oddly enough, it also has two fuel lines connected to it that go to the back of the car.
See what you find first before trying to locate the parts.
I've seen a number of things.. and with your engine moving excessively..it could be fuel line related.
Also.. if at all possible, don't wait. This is leaking gas we are talking about. Aka.. the fumes combust very easily. If you can smell it..there'* more than you want. You have spark plugs and hot exhuast manifolds on your car. The possibility of something igniting that fuel is higher than you want to risk.
Don't wait.. we would not like to hear about you being hurt.
00 Regal GS: All kinds of cool stuff.