[maroman88]

Not Fbody but for the 95 Impala.
When I bought the car, the pedal would randomly drop pretty low. Replaced the master, twice, replaced the booster, I've bled the thing numerous times. I had the proportioning valve apart and it's clean as can be. ABS works fine.
Still getting the same results, and can't pinpoint a condition causing it to happen, totally at random hit the brakes and it's either fine or sinks almost to the floor. Doesn't pull, stops straight as can be.

I did notice very minor seepage today where the plastic tank sits on the master? But the problem has existed with 3 different masters lol.

I'm stumped.