Black Polished aluminum bug catcher Style hood scoop fits single or dual quad carburetors. Comes with 3 round inlet butterflies. Fits most 4BBL carburetors with a 5-1/8" diameter neck including most Edlebrock, Holley, Rochester and Carter. Bug catcher Style hood scoop features an adjustable centerline on dual quad (7-3/4" to 9-1/4"). This unit comes complete with paper element, reversible flaps, and all mounting hardware. Adapter plates are included for either dual or single quad applications. Dimensions: 20-1/2"L x 13-1/2"W x 5"H.