Open and read your owner's manual and you will find the answer. Also look under the hood for a placard with this information on it.
The recommended spark plug gap for a 2000 Chevy Monte Carlo 3.4 V6 is .060"
it is 37
.o44 and some are .043.
0.060
0.060 Inch
.060"
0.040 40 thousandths.
40
.40 gap
1998-2000 2.4L is 0.050
I have a 2000 Chevy S10 Extreme - 4 Cyl. The spark plug gap is .040. Althought when purchased, the spark plugs are pregapped. Always double check the gap.
Normally 0.044" - make sure it's not the type of plug you can't gap