Holley 300-931 Single Plane Intake Manifold - Natural Aluminum

Minimum carb flange height for maximum clearance to hood 4150 type throttle/carb flange to accept square bore carburetors or a Sniper EFI Cast aluminum construction. Great for turbocharger, centrifugal blower or NOS power adders Unique casting for 300-931, 300-931BK without injector bungs for clean appearance Height to throttle valve flange in front is 3.31-inch, rear is 4.25-inch Port size: 1.72-inches tall, 1.75-inches wide Billet aluminum oil fill cap included O-ring seals around ports