Holley EFI Vacuum Manifold - Twelve 1/8 NPT Ports - Two 6 AN ORB - Black Fire Retardant Head Socks 4-Speed Pattern

4-Speed Pattern

Rod Bolt Extension

152 lb/in Spring Rate

Black Oxide Coated Drop Forged Steel Hardware

Holley EFI Vacuum Manifold - Twelve 1/8 NPT Ports - Two 6 AN ORB - Black Fire Retardant Head Socks 4-Speed Pattern12 independent 1 8 NPT ports 2 6 ORB Ports Improve engine bay organization by mounting transducers and or vacuum lines all in one easy to reach location Ideal for engines that require multiple vacuum boost reference sources 4 mounting holes designed for the use of 5 16" socket head cap hardware for secure and robust mounting Crafted from 6061 Aluminum Anodized black for durability and laser etched with the Holley EFI logo Product Description: NPT