Original 1957 through 1961 Corvette dual quad 270 HP 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. Front carburetor is stamped 1161 on top. 15/16 is stamped inside each carburetor. Both carburetors have been been gone through and rebuilt. Winters intake manifold date not legible (due to the oil shield), but very clean with no cracks, repairs, or welds that I can see. Last picture shows the unattached brass piece which is included. All linkage moves freely. Very nice setup! $3,500. Will ship!