How can I find out what bore my MC is???? Thanks, George in NCIf you can't lock up the tires with the current manual brakes, adding a power booster won't help that one bit.
All a power booster does is reduce the amount of leg effort needed to push the pedal down, it does not magically decrease stopping distance. It was developed as a convenience feature, to attract female buyers and the older generations....grandmas and soccer moms.
if you've got the larger 1-1/8" or 1-1/6"" bore master meant for use with a brake booster, pedal will be harder and actual pressure at the calipers and wheel cylinders will be lower than if it had the correct 15/16" or even 7/8" bore master cylinder.
Knob on adjustable prop valve is just like a bolt.....clockwise is tighter, reduces pressure to the rear...counterclockwise is looser, opens the line to the rear more.