You've got a chance, but you need a backup. Think about every worse case scenario and plan for it. The most important thing you can do is bust hiney during clinicals, excel, get great evals, A's, and great SLOR's, show up early, leave late, pro-active, do better on step 2, you know the drill... The reality is that EM has been, and continues to be moderately competitive specialty and with U.S. class sizes increasing, it only makes it more difficult for an IMG to attain a residency spot. They get first preference and first dibs, as they should, and you need to do everything you can to make yourself competitive. Do your away rotations at programs with a history of taking IMG/FMG's, preferably from your school. Apply widely, like....take out a small loan widely. Crunch the numbers in the 2011 Charting Outcomes in the Match. That will give you your best calculable probability in matching. Good luck.
Remember, back up plan. You may not match. Be prepared for that, but yes, you do have a decent shot.
All of that is assuming you are a U.S. Citizen, otherwise I would say that you have a very low probability in matching into EM.