If you got two days to the practice test, don't worry about solving any more questions on the OG guide for practice.
Just take as many full length practice tests as you can and worry about answering all of them on time.
I didn't answer 25% of the questions on the entire exam and got 570.
I'm sure If I answered all of them and given the ending questions are harder and weighted more, there might have been a chance if I answered all of them for me to get even 700 or close to it.
I regret not taking one single practice test from powerprep or whatever it is.
Take those practice tests. Take four and you should be prepared to have the time thing down pat.
Impossible is nothing