One of the quickest ways to increase power to your Chevy V-8 is to replace the stock intake manifold with a performance aluminum manifold. These aftermarket manifolds are relatively cheap and designed to ingest a larger volume of air. It's simple, really. More air means more power. But which manifold is for you? For us to pick one specifically would be ridiculous, especially in today's aftermarket, which is flowing (pun intended) with high-quality intake manifolds to choose from. For most street applications a dual-plane intake is the best choice. These will generally help increase your power curve from 1,500 to 6,500 rpm, which is the engine speed most performance street engines are operated. These gains won't throw the seat-of-the-pants meter to full-tilt, but you can expect to increase the engine's powerband throughout its entire power curve.
It should be said that the intake manifold must be installed properly in order to provide good engine performance. Improper installation can cause vacuum or oil leaks, binding throttle linkage, and myriad other problems. It's nothing major, but why not do it right the first time, especially when all you need are common wrenches, sockets, and screwdrivers? With the few simple tips and guidelines featured over the next several pages, you can skip the woes of a mediocre installation, have the swap completed before noon, and cruise out to the local burger joint while enjoying your newfound gains.