how do you replace the orings around the spark plugs

they are in the valve covers,3 in each one.your plug wells have oil in them,correct?you need to change the valve cover gaskets also.get the oil out of the plug wells with some shop rags and a screwdriver,to sop up the oil.if replacing the plugs,get the oil out first.check your wires also,they may be spungy,if so replace them,if not clean em up with carb.spray.after removing the valve covers,clean the mating surfaces real good before re-installing.Felpro part number,VS50448R=$40.00+tax sounds like you may want to watch a youtube video on how to,or get some help.good luck.