Someone has put an electric fuel pump on my boat. I want to change it back to the vacuum fuel pumps but I don't know where the vacuum line runs to the motor. Was wondering if anyone could post a picture so I can locate it on my motor. I think any 150 and 175 from 1977 to 1990 are the same motor. But after 1983 they have the vro pump they just plugged the other whole from the factory. Thanks for any help.