Fits SBC Engines with Vortec Heads 350,383. Performance Range is 1500 to 6500 RPM.Recommend Carburetor for Street Use is a 600 to 700 CFM Vacuum Secondary. All out Race Carburetor would be 700 to 800 CFM Double Pumper. Be sure & Visit our Performance Parts Store by Clicking the Link below. The item "SBC SMALL BLOCK CHEVY Aluminum Intake Vortec Dual Plane 1500-6500 327,350,383" is in sale since Monday, January 15, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Intake Manifold". The seller is "02starrider" and is located in King, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica.