New brakes, soft pedal, distribution blocks ?

You have 4 wheel disc brakes and a 15/16" master cyl, although it gives you more stopping power it takes more travel to move all the pistons. I think you would be better off with the 1 1/32" master cyl as it will move more fluid and not travel as far. Power booster would help a lot, the ratio is different and you can use a bigger master cyl.

A 15/16 master has higher line pressure. Should result in less pedal effort and greater feel.