Cathedral port 4150 carb intake manifold

HOLLEY HOLLEY SINGLE PLANE EFI SPLIT-DESIGN RACE INTAKE MANIFOLD- GM LS1/LS2/LS6 EFI single plane split-design race intake manifold. Fits all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads Part # 300-255