Don't. Do. It. Slush pile readers, editors, and agents aren't stupid. Soon as you send that Word document off to us with 1700 words stapled to your e-mail, and we realize the story seems longer, we're reviewing your word count only to discover it's 3,000 words longer than what your e-mail dictated (or perhaps 10,000 words longer if it's a novel and not a short story).
We're not stupid. Don't insult us.