The smoking may just be a leaking valve cover gasket. As for the rest, I think we need a little more info. Is the check-engine light on? Is it shaking all the time/just at idle/during acceleration? Hot or cold? What’s the mileage?
More info would be great like johnzcarz said. The smoke sounds like there’s a leak of something somewhere. Those cars were famous for the cylinder head gaskets leaking, mainly on the left rear side of the engine when looking at it from the front. The intake gaskets also leaked on those cars. Give us a little more info and we’ll go from there.