Abstract: In the anti-pollution structure with a fuel economizing fuel feed and exhaust system for an internal combustion engine of the present invention an air blower is positively driven from the fan pulley and provides a supply of air to an exhaust heated heat exchanger with a portion of the air flowing into a plurality of exhaust burners and a portion of the air being fed to the air cleaner of the carburetor. Another portion of the air is fed into an air injector between the carburetor and the intake manifold to provide an extra supply of air at a relatively high velocity. The invention is illustrated as applied to both a V-8 engine and a 4 cylinder engine.