I have a 1984 toyota pickup. When i first got it. It barely had any brakes. You had to pump them 2 to 3 times to get brakes. So i replaced the master cylinder. Which made it even worse. So maybe its the brake booster. 1 brake booster later still the same problem. Excpet now i have to pump the brakes 4 to 5 times to get anything. Then when i rev the motor all brakes are lost. Ive checked all the vacuum lines. Brakes lines. Nothings leaking at all. I have aboslutely no clue as to what needs to be done next. Theres solid fluid out of every bleeder even the LSPV. Its got the 22r motor in it. If youbgusy could please point me in the right direction that would be much appreciated.