The Edelbrock Super Victor Intake Manifold is manufactured from aluminum and given a natural finish. They are designed for high RPM or large displacement competition vehicles with a deck height of 9. 5 used in drag or oval track racing. They provide the maximum horsepower and torque needed to win races. The extended, constant cross-sectional area of the runners produce more torque across the mid-range, from 4, 500 RPM up to 8, 500 RPM. They deliver great throttle response off the corners in oval track racing, and improved 60 foot times in drag racing. They are also ideal for alcohol use.