NEED PIC. OR ROUTING DIA. OF VAC. LINES FOR THE HEATING AND AIR COND. SYSTEM. THIS IS 4 A 74 DUSTER, 318 AUTO 2BBL. IT HAS AVACUUM BOOSTER ON THE PASS. FENDER. DOES THE LINE FROM THE INTERIOR GO TO THIS, AND WHERE DOES THE BOOSTER PICK UP THE SUPPLY?