Need help adjusting-Ladder bars

It will my first time adjusting ladder bars and have been studying Dave Morgans book but not understanding completely,With the new trany we need to take some hit out cause Zach's pulling the wheels 6ft in the air sure it looks cool and he gets off on it but it's not helping so I have to take some hit out,So front bolts are in the middle hole but don't know if we just take bolts out and pull the bars down to the bottom hole and then adjust pinion angle???? or do we pull the bolts out and use the rear bar adjusters to lower the front down to the bottom holes but then how do we adjust pinion angle ???? Thanks in advance I know someone will help--Steve