Cast alloy type, fits twin SU carbs, either HS4 or HS6. This intake manifold has been carefully produced to minimize cross-port flow interference caused by the balance tube and has generous radii in all the right places. Further blending can be done if required, but leave a rough-ground finish to promote fuel atomization. Do NOT polish!
See C-AEG488 for twin HS2 or H4 carbs. See also AUE1015 manifold, for use when original appearance must be maintained.