EK VR 101 is a great book for the MCAT btw...
Here's what I did:
I did about 3 passages a day in addition to studying for the physical/biological sciences (3 passages is about all I can take per day 😛 😛 )
I would give myself about 9-10min for each one and then immediately check my answers after each passage (I think my mind would get too cluttered if I were to do an entire test and then check my answers; plus, by then, I'd be too tired to care why I missed the questions that I did).
I started a little more than a month b/f the exam date which proved to be about just right.
Nevertheless, I doubt many ppl practiced this way or would even recommend doing so... but, this is what worked best for me.
Good luck 😎