[SWeeks]

Cobra427mnsi,
Originally, I had nine inch disc on front, ten and a half inch disc on the rear, adjustable proportioning valve, Mustang II booster, and a NAPA corvette master cyl. that was recommended by Don Scott.
I now have Twelve inch (Master Power) disc with PBR calipers on front, eleven and three quarter (Rear from 95 Cobra) on the rear, same booster and proportioning valve, stainless flex hoses, and I replaced the master cyl. with another corvette cyl. I replaced the silicon brake fluid with Dot 5. I've always thought that the Pedal Ratio was the real problem, I've been looking for a pedal assy. from a donor car, but haven't found one yet. I was very excited when Don made the new pedal. I was somewhat disappointed when I installed it and test drove it and still have pretty much the same brakes I've always had. My Chrysler Pacifica and my Jeep Grand Cherokee, stop much better than my Cobra. My wife has a BMW M3, now thats BRAKES! Don, do you have any suggestions?