− Decrease quantity for Carburetor Adapter, 4-Hole, Square Bore Carb To Spread Bore Manifold, .850 in. Thick, Fuel Hose, Clamps, Kit Quantity + Increase quantity for Carburetor Adapter, 4-Hole, Square Bore Carb To Spread Bore Manifold, .850 in. Thick, Fuel Hose, Clamps, Kit Add to cart