Agree with the above but let me take a slightly different approach on the answer.
You do NOT need to know your MOC to get a nom. Most, if not all, MOCs use some form of a citizens' committee made up of volunteers from the state/district. They review the applications, conduct interviews, and make recommendations to the MOC on whom to nominate. The purpose of this is to insulate nominees from the political process and eliminate charges of nepotism. Most candidates who receive noms have never met -- and will never meet -- the MOC as part of this process.
For example, when I got my nom (albeit many years ago), my parents were actively working to unseat the MOC from whom I got my nom. So, donating money, meeting your MOC, working for him/her over the summer, etc. GENERALLY makes not difference. If it did, everyone would be doing it.
That said, I'm not naive enough to think that there aren't situations here & there when knowing your MOC really well (family, long-term friendships) might help get you a nom. But I don't believe it's at all common. In any event, there's nothing you can do about it.
The best thing to do is attend the info days (as discussed above) and download the application packets from your MOCs -- or otherwise obtain them -- as soon as possible so you know now what's expected. You really do NOT need to do anything more.