to get the plug gap you can call your local autopart store and give the engine code to person, you can find this by the vin number < 8th digit/ letter from the start>.
specification on gapping spark plugs for 2006 chevy cobalt
1.1 mm
4...under the coil cover
there are four spark plugs.
132 ft lbs. becarefull not to snap the plugs
.035
should be .035
Take the valve cover off and the plugs will be right under it
they are located in the engine block. You'll need an extension to the wrench in order to get them out.
I believe that the gapping is .044" on this engine.
same as with a 97. under the aluminum cover on top of the engine.
how do i change the spark plugs on a Chevy silverado 1500