If the car is sitting level or front end slightly lower, very little oil will come out, maybe an ounce. If the car is jacked up with the nose in the air and rear tires lower, you get quite a bit of oil.
Check the trans oil on the dipstick. This should be done with the car sitting on level ground, the engine should be warmed up and running. You should not run the transmission over filled as it can cause oil aeration.
Also, the rubber hose at the modulator end and intake/carb end should be replaced at the same time. unless recently replaced.