This 1968-1982 Corvette Molded Hose Set has the main feed and return S shaped rubber hoses as a set.
1968-1982 Corvette Molded Fuel Pump Hose Set has both the main fuel feed and return hose that connect the rigid tank fuel lines to the fuel pump. This is to allow the engine to move or "lift" against engine torque under hard acceleration.
These special "S" shaped molded rubber hoses are fuel resistant and reinforced to prevent collapse of the core causing fuel flow restriction and carburetor fuel starvation issues.