Hi jayarora,
First off, a 760/Q50 is an outstanding Score, so you can comfortably apply to any Business Schools that interest you. Since most Business Schools don't care about IR much (if at all), your IR Score will likely NOT impact your applications in any way. You're ultimately asking Admissions questions though, so you would likely find it beneficial to speak with an Admissions Expert about your overall profile and plans. There's a Forum full of those Experts here:
https://gmatclub.com/forum/ask-admissio ... tants-124/GMAT assassins aren't born, they're made,
Rich