I have a 2003 Chevy Monte Carlo with only like 10,000 miles it has sit for a while and will not start.
We would need a little more info than that. like how it is not starting.
just a click, click sound when trying to start it? -dead battery
no sound at all? - dead battery
does it turn over and not start?
how long has it been sitting for? if it is over a year or two? it could be bad gas that turned to varnish.
the more info you give the better chance someone here might be able to help you.
Monte ss with supercharger is kinda cool.
You might try re-charging the battery with a battery charger overnight at the 2 amp setting.
My crystal ball says that grandma bought it new and never drove it, then got to old to drive it anymore so gave it to her grandson who thought it was a real Nascar racecar and put a cold air induction on it with the filter very low then ran off the road into a ditch with standing water in it which in turn sucked up water causing the engine to hydraulic lock causing it to not start because the engine is locked up now, then sold it to you cheap saying it needs some engine work… Well it could happen… 
But seriously, as mentioned above, we need wayyyy more info then what you posted…
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