Edelbrock Part # 2849 Victor RO-7 intake manifold was approved for 2011 NASCAR Nationwide Series. This manifold is for high RPM applications. Edelbrock’s engineers work closely with engine builders from all forms of racing to produce manifolds with superior power potential for competition. Victor Series manifolds have extra material for port matching and customizing. Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships, further underscoring our commitment to the racing community.