In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet ... manifold really make a difference?Two basic types of intake manifolds are used on most ...

The fact is the little Chevy has undergone a number ... the most noticeable difference is on the intake manifold surface. The intake manifold on Vortec heads are held in place by eight 5/16-18 ...

When Chevy enthusiasts discovered the capabilities ... are all making aluminum Vortec intake manifolds for carbureted applications. Other companies, such as Crane Cams, Comp Cams, and Proform ...

There is no one formula to follow in building the ultimate engine. Variables such as cost, parts availability, and intended use all play major factors in the horsepower equation. In the June '03 ...