Made through an injection molding process, the over-molding incorporates molded hose barbs, allowing for secure fuel connections. The over-molding also features mounting accommodations, ensuring a robust connection between the valve body and other components within the carburetor assembly. Its precise design and reliable material properties contribute to the overall integrity of the valve body assembly, ensuring efficient fuel flow regulation and dependable performance in the M40 engine. As a key element in optimizing fuel management and facilitating smooth engine operation, the nylon over-molding plays a pivotal role in model airplane applications, where reliable and consistent fuel delivery is paramount.