haha this thread is funny. first what you need to do is tell us what color the smoke is. white is usually headgasket... bluish black is usually burning oil (piston rings), black means you are running rich.. there are a ton of possibilities. whats the color? how many miles does your car have?

My guess, since it's only at WOT, is that you have poor sealing piston rings. I would do a compression test and post the results

edit: I didn't read carefully h: since it's white smoke then I would bet you are just running lean at WOT, which could be either a fuel issue like a fuel filter or similar, or maybe a small vacuum leak causing a slightly lean condtion