I thought I smelled the same. Gonna see if the dealer will help me out on this one

 

nice! ya, a known bugeye issue. mine did it the first winter i went to tahoe and read about the fuel lines, i replaced fuel filter, ALL lines (including little one inch long hoses under intake manifold) and installed new clamps. havent had any smell in tahoe since glad u got it resolved! even here around the bay it gets pretty cold.