You seem to have confused yourself. See, both the 67/100 and the CRS (400...) are a factor here. You have to read to get more accustomed to the way this system works.
Check this -->
http://www.canadavisa.com/canada-immigration-discussion-board/express-entry-in-a-nutshell-t394158.0.html;msg4915358#msg4915358
See, for you to be eligible for Express Entry under the Federal Skilled Worker Stream (FSW), you need to score at least 67 points in the FSW points grid.
For you to receive an Invitation to Apply (ITA), you have to have a good Comprehensive Ranking Score (CRS). You can calculate your CRS here -->
http://www.cic.gc.ca/english/immigrate/skilled/crs-tool.asp
You will also see your CRS in your myCIC account.
See, to apply to OINP, you need a CRS of at least 400 (per the existing regulation). OINP might invite you to send them an application. You have to send them an application and if they approve it, they will issue you a nomination. Nomination = 600 CRS points. Once you get this, your CRS will grow my 600 points.
For instance, if your CRS is 410, once you get nominated, it will be 410 + 600 = 1010. This high CRS is going to definitely get you an ITA in the next draw.
So, to sum it up, you must score at least 67/100 to be eligible to apply for Express Entry. Once you are eligible and you create your profile, then, you need a god CRS to get an ITA. Once you get ITA, you'll be submitting your "Electronic-Application for Permanent Residence" (e-APR).
I hope I have made myself clear.
Good luck!