lol, that's almost my exact same score!
I've been cracking down on SC, RC and CR.
Do a search for the SC 1000, CR 1000...
I actually used the Chinese Zip file--same idea: tons of problems, separated by subject: PS, DS, CR, RC, SC.
I found I am weakest at SC and RC so I've been focusing most of my efforts there. Don't get in the habbit of doing a problem and only getting it right the next time b/c you memorized the answer. You need to identify key errors, eliminate choices and pick hte best answer for SC.
For RC, you gotta read and understand the passage before you can answer the questions. Don't get bogged down in details--make sure you understand how the author is framing the passage (presenting info / data, supporting a theory, providing an alternative approach, etc.)
You'll want to pay attention to the examples used to see if they are used to support or weaken.