Abstract: A flow control and vaporizing chamber comprising a cylindrical member containing a plurality of closely spaced, longitudinally extending tubes. The chamber is positioned in a vehicle engine between the carburetor and the intake manifold. The cylindrical member has an outer diameter which snugly fits into the intake manifold and a base which rests on the manifold frame. The longitudinally extending tubes receive the fuel-and-air mixture from the carburetor, break up the fuel in the mixture and direct the mixture to the cylinders.