It should be with the tune up specs on the fan shroud.
#2) it shouldn't be anything you worry about. new spark plugs are pre-gapped and shouldn't be messed with. in most cases today spark plug gapping is a thing of the past unless your building a race car.
Nothing
1996 Chevrolet Impala SS 5.7L SFI OHV 8cylThe Spark Plug Gap.050 (In thousandths of an inch)
ALLDATA.COM http://autorepair.about.com/library/firing_orders/bl-chevrolet-firing-95.htm
A 2009 Chevrolet Silverado with the 5.3 engine requires a .040" spark plug gap.
The radiator drain plug on a Chevrolet Corsica is the lowest, skinniest hose on the back of the radiator. The radiator cap will have to be removed to allow for fast draining after this hose is removed.
call autoparts house
.060
.045 plug gap.
2004 Chevrolet Aveo 1.6L MFI DOHC 4cylThe Spark Plug Gap.044 (In thousandths of an inch)
the spark gap .060
0.035 in.
Change_spark_plug_on_chevrolet_avalanche_2002