help white smoke???HELPPPPPP

i havent lost a drop of water?or oil?after 600 miles of doing this 1 month.. its white smoke and only smookes at idle....it smells like raw fuel inside the car sometimes ,,especially after i get gas?no leak by the filler neck or tank...fuel pressure good and steady 38psi.....but when i sniff the exhaust it dont really smell like raw fuel?? AND AFTER I SHUT THE CAR it still got freakin smoke comin out of the exhaust for a couple minutes??????ha!! never seen that one////anyone???

thanx....its an idea..anythings possible..the screwy thing is that it freakin smokes after the cars off!!
it makes the only sense i ca think of..or bad cats that are so clogged the get cherry red and burn the carbon at the same time.?
maybe its the hindu gas station with all the water in their gas???