Originally Posted by
starfmguy
There is no vacuum line to the distributor, just set with the engine rev'd up a little... About 22 deg advance should be good to start. See other posts. Others, more expert than me, may chime in here...
The detents are standard for brake bias adjuster knobs and are there for reference (every 90 deg rotation) and to help keep the knob in the position you set it so it doesn't rotate inadvertently and change the bias. Make sure all the threads on the balance bar are clean and everything turns smoothly when you turn the adjuster knob, so it works when you need it.