Original 1957 through 1961 Corvette dual quad setup in used condition. Aluminum 2x4 intake manifold shows GM casting #3739653. Correct dual quad carburetors for 1957 1958 1959 1960 and 1961 Corvette show 1299 lids and 0-049 bowls with correct dual quad bases. Front carburetor is stamped 1161 on the top. Winters intake manifold is dated 9 26 60 (September 26, 1960), and is very clean with original oil shield and no cracks, repairs, or welds that I can see. All linkage moves freely. Very nice original setup! $2,000. Will ship!