After repairs my engine is still has a rough idle.

Did the car idle rough prior to repairs? I wonder if the engine has a vacuum leak either from a vacuum hose or intake manifold gasket. Your car has on board diagnostic capabilities. There is 16 pin diagnostic socket under the dash. A scan tool is plugged into the connector to retrieve trouble codes, pending trouble codes and live data from sensors on the engine. It would be cheaper at this stage to get the car properly diagnosed at this point and would not justify the cost for you to by a decent lap top based scan tool. Has the check engine/Service Engine Soon light come on, if so it needs a scan tool to verify the fault.