These are not published and any "data" anyone tells you will be based on anecdotal experience (unless they are on an admissions committee at one of these programs or something like that). Remember board scores are only one part of an application, just like grades, research, extra-curriculars, leadership, interview, etc. Programs look at the entire application. Someone will always provide that one example of a person who scored a 185 on their boards and getting into a top program or the person who was denied at the top program with a score of 270, and it all means nothing. Many programs may have a cut-off for offering interviews, but who knows what they are, and it will vary greatly even among the top programs.
Bottom line, the better score you have will increase the chances of getting into a good program because that is one aspect of your application that will stand out. But a good score alone wont guarantee you a spot and a lower board score doesnt guarantee you a rejection. Apply to every program you would like to go to and if you feel your board score is borderline, try to make up for it in other areas of your application.
