Polished Dual Plane Carburetor Intake Manifold For Cathedral Port LS Engines

✅ Basic Operating RPM Range: 1,500-6,500 ✅ Cast Aluminum Polished Finish ✅ 4150 Square bore flange ✅ Interchanges with 300-130 ✅ Optimized runner layout and constant cross sectional area - broad torque curve, best engine performance from 1,500-6,500 RPM. ✅ Cast aluminum construction - great manifold for carbureted or throttle body EFI street applications. ✅ Efficient casting design - lightweight, consistent wall thicknesses, high quality casting. ✅ Designed to work with all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads. ✅ Includes mounting hardware and gaskets.