Put a new set of copper plugs in your car NGK BCPR6ES gapped down to 0.8mm. While you have your coils out inspect them carefully for signs of shorting and anyway spray them with some insulating stuff.
All RBs run rich from stock. Look at getting a Nistune chip to make your car fully tuneable and it will go better (more power, more smooothly) all round and will eliminate the Rich and Retard if that is what you are experiencing.
(and yes, get rid of your pod and get a high flow filter for your stock airbox!)