Rectangle port LS intake

HOLLEY HOLLEY LS CARBURETED MANIFOLD 2X4 DUAL PLANE LS3/L92 – BLACK Black Ceramic Coated,Carbureted GM LS Gen III LS3/LS92 2×4160 dual plane intake manifold. All GM LS Gen III or Gen IV engines equipped with LS3/L92 style rectangular port cylinder heads. Part # 300-133BK