Quote: With 2 breathers I'm thinking he has broke some rings .... pull the breathers and run without them and see if the valley pan still bows up(push it down first)
Is he running the breathers into the exhaust with the check valves? He may have had them go bad. I had it happen on my car. Street driven and bulged 2 pretty close back to back time frame. Took the breather hoses and went to free air. Been fine ever since. Mr. P Body did tell me in another post on this to check the check valves and the tubes that go into the exhaust to confirm there is no problems there.
Just for terminology, when a person says breathers I take that to be it is venting to atmosphere and if its hooked up to the exhaust I call that a evacuation system and in this case he stated breathers
