Working on my charger again trying to get the brakes to work better and looking for suggestions. I have converted the front from drum to early 80' diplomat front disc. The rear i used gm metric calipers and jeep rotors i believe. I have a universal master from summit with 7/8 bore. And a adjustable prop. Valve on the rears ne t to the master. I just cant seem to get a decent pedal, always low and kinda spongee. The cars runs almost 130 mph in the 1/4 and is kinda hard to slow down. Just trying to figure out which way to go. Thanks for any advice.