jshockster

I just bought a used 2001 challenger(only 100 hrs on it) & the engine cuts out when I increase the throttle. I assume the previous owner let it sit for awhile. My first reaction is to get rid of the old gas, change the fuel filter & spark plugs & run new premium gas w/ marine Sta-Bil additive. Should I drain the oil as well? If so, what kind of oil works best? If anyone has additional advise please feel free to post it. Thanks!