adjusting the power brake booster push rod

[hemi68charger]

Hello All,
I looked in my 71 Dodge FSM and couldn't find anything about adjusting the push-rod that activates the master cylinder. The brake system is a power front disc brake car. I'm looking to try and fix a situation where the brakes seem to be hanging a wee bit ( like if you were in a driveway and the car doesn't roll down the driveway as it should )..

Cheers,
Troy

[Chryco Psycho]

2 piece threaded pushrod , pull the master off , use 2 pairs of pliers & shorten the rod maybe 1/2 turn & re-install the master