I've searched my manuals and I can't find an answer so, here goes. 1970 55 hp Chrysler model 554HA. At the reed adapter plate , there are 2 hoses that exit and go into a T fitting .The T fitting goes to 1 hose which goes into the exhaust housing. The lower of the 2 hoses has a check valve in it. Does anyone know which way the air is supposed to flow?