[331lxstang]

Just went thru this on my cr roadster, don't waste your time with the Vette mc. I have 4 wheel disc and results were the same with disc/ drum. I converted to manual due to vacuum issues. After I changed the brake pedal ratio and went manual I couldn't get enough brake pressure to lock tires up in emergency. The best ratio I could achieve with stock brake pedal arm was 5:1 after relocating pivot point on pedal assembly. Tried the Vette cylinder, no change whatsoever. Tried adjustable prop valve still no change. Finally realized due to pedal ratio needed smaller bore master cylinder 7/8 bore from wilwood did the trick. It made a massive difference part #260-12900 for those interested.