Hillborn Style Dual Quad Aluminum Carb Scoop. Scoop Mounting Flange: 5 1/8 in. (4-barrel). Hood Scoop Style: Hilborn. Scoop Finish: Polished. Scoop Material: Aluminum. Notes: This scoop will adjust to accommodate carburetors with center-to-center distances of 8.25 in.-9.50 in.