The actual evidence for that across the US is practically non-existent. I'm aware of a few infamous instances of argued bias in California, which has resulted in lawsuits.
Asians have the highest university attendance rate and the highest education attainment rate in the US.
"Writing in the New York Times, Harvard political theorist Yascha Mounk points out that Asian students must outperform their white peers by 140 SAT points to win admission to elite universities." [1]
"Today, according to a survey by The Harvard Crimson, Asian-American freshmen had higher SAT scores than any other ethnic group. It's not enough for them to be as good as everyone else: To get in, they have to be considerably better.
The problem seems to be that, in the absence of measures to limit their representation, there would just be too many Asian-Americans. So, from all outward appearances, Harvard has a quota to prevent that unwanted result." [2]
There are tons of results. [3]
[1]http://america.aljazeera.com/opinions/2015/10/the-asian-disa...
[2] http://www.chicagotribune.com/news/opinion/chapman/ct-asians...
[3]https://www.google.com/search?q=asians+and+white+sat+scores&...