Also the master cylinder (i think) is a 15/16" or 1" bore (cj jeep size) and the wheel cylinders up front are 1 1/8"
What this means is that the master cylinder has to move a * whole lot * (more than physically possible) to expand the wheel cylinders a little.
It's like sticking $1.00 in a vending machine for a $1.12 item ... you're not going to get much out of it.
Plans are to replace the master cylinder and front wheel cylinders with 1 1/8" bore parts from bigger vehicles.
(popluar master cylinder doners are the 79 scout II or 79 cherokee)
*Update 12-16-11, ordered a booster and master cylinder off a 84 waggy that should be in soon, and some new front wheel cylinders. all 1 1/8" bore. I realize that there isn't a residual valve on the mc for the fronts since the waggy had disks, but I'll do a test run to see if it is too much or too little braking - somewhere between not stopping and locking up would be good.