Carburetor Adapter (Spread Bore to Square Bore) 300 6QFT premade hoses Adjustable Yes AN Thread 10 Distribute Balanced N2O Amounts Adjustable Yes AN Thread 10 AN Angle 60 Degree Assembly Method Twist On Brand Earls Compatible Hose Auto Flex Compatible Hose Mr Gasket Black Nylon Compatible Hose Perform O Flex Compatible Hose Pro Lite 350 Compatible Hose Pro Lite 390 Emission Code 5 Finish Anodized Red and Blue Fitting to Hose Mate Type Cutter Hose End Family Swivel Seal Hose End Series 8 Hose End Size 10 AN Hose Size 10 AN Material Aluminum Pack Qty 1 Product Type AN Female Hose End Reusable Yes Socket Material Aluminum Swivel Yes Warning California Proposition 65 Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 51432 Year Make Model Submodel Engine Size Universal Cast aluminum adapter will allow any 4150 or 4160 style carb to be mounted on manifolds designed for Rochester Quadrajet or Carter Thermoquad carbs