ok still having bake problems new master cylinder brake cylinders calipers are good and lines are good new distribution block brake lines are good and can not find a leak. when i hit the brakes the seem good then slowly leak to the floor. causing me to have to pump the brakes the line to the booster is getting vacuum. my friend told me that it may be my brake booster but i thought if it went bad it would just cause me to have manual brakes and them just be really firm and hard to push any ideas would help please