Countersniper

My '05 GT with 18,000 miles started the other day & acted like it was flooding out, puffed out exhaust fumes that smelled like raw fuel & now it won't start.
It cranks and tries to start but won't fire up. Pulled the plugs & they were black (but I don't drive the dang thing that much these days so it barely has an opportunity to get up to operating temp.). There are no codes! Tested each coil pack, there's spark. Disconnected the fuel filter & there's fuel. When I cleaned the plugs & put them back in it seemed to almost start but died out. I have a new set of plugs to put in a little later today but I am at a loss here.