hard brakes with ssbc force 10 power kit..

i have installed a force 10 power brake kit on my duster with there proportioning valve and the pedal is up high and really hard but the car just doesn't want to stop very good. the fluid is good bled them 2 times. what can i do i only driven the car around the block so like 30 mph was the top speed i have driven it could it be i haven't got the pads to seat good enough.