WELL, I HAVE ALWAYS PUT MINE ON THE LEFT OF THE CENTERLINE, RIGHT THROUGH THE CAV. PLATE. RUN STAINLESS UP THROUGH THE TRANSOM. TO THE RIGHT OF THE CENTERLINE, I PUT A OUTLET FOR THE WATER TO PISS OUT UP ON THE TRANSOM! I ALSO RUN A CHECK VALE TO KEEP THE PRESSURE IN THE SYSTEM. HOPE THAT HELPS A LITTLE.