I recently purchased a 1974 VW Super Beetle. I have replaced master cylinder, all wheel cylinders and shoes all the way around. I have bled the master cylinder (I think) and all 4 wheel cylinders. The problem I am running into is there doesn't seem to be enough pressure at the pedal as needed. The brakes do engage when the pedal is pressed, however the pressure seems to fluxuate everytime the pedal is depressed. Has anyone had this problem? I would really appreciate any advice or help. Thank you!