You're going to want a master cylinder wtih a smaller bore. If you use the large bore master from the power braket setup, your pedal will be pretty stiff. The smaller bore is perfect for this. Dr. Diff sells a kit with a 15/16" bore. There are others that make that master cylinder too (mopar performance, wilwood, etc.) and I think it was available on production cars at some point, I just don't know the year/make/model.
