Edelbrock Part # 72925 Victor Jr. intake manifold for small-block Chevy with Pre-Assembled Direct Port Nitrous System is excellent for high performance street and racing applications. Designed for heads with a standard port location, the runners match “flat floor” entry 23 degree heads. Carb pad height is 5-1/2" (from end seals) and overall, the #2925 is about one-inch taller than our Victor Jr. The #72925 features a pre-assembled ready to bolt-on direct port nitrous system out-of-the-box. This system is compatible with any 4150 flange carburetor. The kit includes a Super Victor manifold, Performer Series fuel and nitrous solenoids, distribution blocks and high flow lines with E2 Series nozzles. This system is capable of up to 300 additional horsepower, and is supplied with jetting for 100 & 150 horsepower. The Edelbrock Victor Jr. intake manifold also features a natural aluminum finish for a classic look. For the ultimate "Made in USA" quality, every Edelbrock intake manifold is cast and machined in the USA.