i think he made a typo,,,, the master cyl he is using is a 3/4 bore,,,if its a tilton master,,or a wilwood,, same master just a different name stamped on it it is probably a 1 . 1 inch stroke,,and if you push that master to far it will blow the seal and leak,,
i ran a tilton hyd bearing for 10 years,,it was really a nascar bearing designed for GM cars,,with an adapter for mopar,,it really never hard enough travel to work properly,,,and finally gave out,,but wore out my syncros at the same time,,,,
i currently have the same set up as pictured by chucks classics,,with one exception,, i bought the parts seperatly from speed way motors saved over a 100 bucks,, and all i had to do was make my own bracket,,,i mounted the slave cylinder differently,, and it works great,,it uses the factory shifting fork,,and factory style throw out bearing,,,
