You need to provide a lot more info about the brake calipers, size of master cylinder bore, size of power booster and whether it's a single or dual diaphragm. The pedal leverage ratio is also a must.

As an example, my car has a 3.8/1 pedal ratio. With a single diaphragm booster, 1" master cylinder bore and Wilwood discs, the pedal pressure was higher than I wanted. A change to a dual diaphragm booster increased the pressure and reduced the pedal force by about 27%, which was better, but still not overwhelming. I've just reassembled the chassis (for the last time) and installed both an 8" dual diaphragm booster and the 7/8" bore master cylinder, that should increase pressure and reduce pedal pressure by over 50%.

I called Wilwood and got a recommendation of a minimum 8" dual diaphragm booster, with a 1" bore master cylinder, so I went one step further, adding the smaller bore master cylinder. I will be a few months before I get to try it out.

A manual brake system from Wilwood has a 7/1 pedal ratio, that they claim will make the brakes operate as easily as many boosted setups. It does require more pedal travel, with that ratio.