Hey Howard conventional wisdom is that the pedal ratio is way off for booster delete (it's around 3.5-4iirc). I built a twin master pedal box and used a 6.5 pedal ratio. This still makes the brakes very heavy (have not bedded them in or run at the track though ). The guys who have built / fitted pedal boxes to their race cars recommend a pedal ratio around 6-7.5. This is also backed up by literature in aftermarket brake suppliers catalogues.

The size of your master needs to be matched to your caliper piston area to match fluid volume. Then you tweak the pedal ratio to give you the right feel.

Have a bit of a read of the technical info on the obp website for a start. I imagine alcon, AP and brembo sites probably have similar tech info.