I've tried a number of bleeds using both the standard bleed method as well as the 'pressure pot' method (pressure tank connected to the master cylinder)and cannot get a high pedal on the 58 Spartan I'm working on. This originally was an air over hydraulic system, which I converted to a vacuum over system, using a more modern type vacuum booster. The brakes stop well, but the pedal travel is so long that the pedal almost hits the floor. Could it be that the dual cylinders (all new/replaced) at the wheels are still trapping some air....should I try the vacuum type bleeders that are available? Your input would be much appreciated!!