i've got a 72 malibu with power drum brakes all around. just today i found that the rod that connects to the brake pedal was in the wrong (top) hole, so i switched that around and now the brake pedal moves about an inch as opposed to like 8 inches... it's great. anyway, now when i press down on the pedal, something that sounds like a very loud air leak can be heard from inside the car. the moment you take your foot off the pedal it stops, but as soon as you press back down, there it goes. the brakes still seem to work fine though as far as i can tell.
is this normal? i don't think it is, but what do i know? any help sure would be appreciated, thanks.