The Power+Plus CrossWind for the Vortec features the same plenum and runner design as the 52020/52021 and 52025/52026 manifolds. In this design the manifold is made wider to accommodate the Vortec design heads and also features the Vortec port configuration. The manifold also has a square bore carb pad to utilize the standard Holley, Carter and Edelbrock carburetors. utilize the standard Holley, Carter and Edelbrock carburetors. On medium horsepower engines, our dyno tests have shown that this manifold comes very close to producing similar power and torque numbers as our Hurricane racing intake manifold.