Fuel Manifold 1/2" pump, (2) -6AN outlet, (1) -8AN inlet, (1) 1/8" pressure Fuel efficiency and delivery is vital to promote maximum performance and prevent engine failure, caused by poor fuel management. TCM stainless fuel manifolds come polished and configured to join two separate fuel sources without brackets or excessive plumbing. Our fuel manifolds mount directly to your mechanical or electric fuel pump.