M/C is off pelican and is the 15/16 bore. If the hiss is under the dash I am going to need a new booster, even if it holds vacuum? where would it leak from on the back of it?

Do I adjust the pushrod by grabbing the point where it connects to the master and rotating it in/out?

My calipers are for sure not falling off.

__________________
A junkyard is not for junk