AAMC Material

2 questions. First question: I'm about to start the AAMC section banks: Should I do them timed or untimed? Second question: I just finished the 2 bio qpacks and chem pack with these scores respectively: 78%, 89%, 81%. Are these good scores on the qpacks? Thanks for the help!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums