Hello again! So I finished my Intake Manifold gasket job, and i got the right bolts (thanks everyone!), torqued everything down but now the engine starts, has a rough idle, spit out a white smoke that smelt of plastic burning, and also had a small tapping sound when shut off. It might be old gas (the car has sat for 2 months) also the oil has been changed as well. I followed everything in my book, but now I'm really confused.