My 85 se has real weak brakes if I pump them it gets somewhat of a pedal but have to floor the pedal to stop. I replaced every single part of the brake system all the lines and hoses master cylinder, brake valve, brake booster, all the calipers, roters and pads, I bled them several times to make sure all air was out, they felt good then I started it and felt weeks again. Am I missing something.