Edelbrock part #28456 intake manifold kit contains a Victor Jr LS3 PN 28547 an ignition timing control box, wiring harness, and bracket. It is designed for Gen IV LS engines equipped with LS3, L92 and L76 cylinder heads. The lightweight (13.6lbs) manifold is for carbureted high-performance applications operating between 3500-7500 rpm. Top it off with a VRS-4150 carburetor and hang on.