Engines cannot perform its task efficiently without its components. Your Pontiac intake manifold or the inlet manifold is an integral part of the engine that performs a vital function. An engine needs an accurate mixture of fuel and air in order to work efficiently, if this is achieved, the engine will work perfectly. However, without an intake manifold, it is still useless. The Pontiac intake manifold is composed of passages that take the fuel and air mixture from the carburetor to the intake valves of the engine. It is commonly found between the carburetor and the cylinder head, and cylinder heads in old model vehicles. Your Pontiac intake manifold is designed specifically to perform with the skillful operation of the engine. The fuel charge that is taken in each cylinder should have the same quality and strength so as to have a smooth and even operation; hence the fuel distribution should be stable if possible. But this depends on the design of the intake manifold. One of the perfect forms of a fuel charge is the dry fuel vapor; unfortunately, present-day fuel avoids this unless the mixture is submitted to a maximum temperature. When the fuel charge is extremely heated, the engine power is reduced because the heat has expanded the fuel charge. So it is recommended that it is better to have fuel deposited on the cylinder walls and the manifold vents. On newer vehicles, manifolds are designed like this so that the fuel amount that is being condensed on the intake manifold walls will be minimized. If you need an aftermarket replacement of your old intake manifold, don't hesitate to visit our site for a complete line of high quality Pontiac intake manifolds that best matches your vehicle specifications.