Edelbrock 1803 Thunder Series 500cfm carburetor with electric choke. Designed and calibrated for engines from 305 cubic inch down and also for use with dual quad applications. Includes both timed and constant vacuum ports for ignition advance. Easy to adjust electric choke. Thunder series carburetors feature an adjustable valve secondary that allows for simple and accurate tuning across the rpm range. It's quick, simple and easily adjusted with simple hand tools with the carburetor installed on your engine. Attractive black coated hardware for a custom look. Thunder series carburetors provide you the option of going with a single or dual fuel inlet for total fuel plumbing flexibility. Float levels are factory set, adjustments are rarely needed. Two piece design means no gaskets below the fuel level for leak free operation. Change jets, metering rods, springs, seats and floats without draining fuel or removing the carb from the manifold. Completely tuneable to your specific engine setup. Possible jetting, spring or metering rod tuning may be required depending on your engine modifications. Made in the U.S.A. Every Edelbrock carburetor is manufactured by Magneti Marelli Powertrain U.S.A. This carburetor is new, not remanufactured. Edelbrock 1803 carburetor Thunder Series 500 cfm carb EDELBROCK-1803 A chrome plated steel fuel line designed for the Edelbrock carburetor shown above. Includes a flared fitting with a 3/8" hose barb for easy fuel line installations. Shown installed on an Edelbrock carburetor. 3E8126 A chrome fuel line and blue anodized aluminum fuel filter upgrade kit for the Edelbrock carburetor shown above. Features a -6AN male fitting. Attractive and professional appearance. Picture shows this filter and line mounted to an Edelbrock carburetor. 3E8134 This fuel line and filter kit upgrade fits the Edelbrock carburetor shown above. This kit includes a chromed hard steel fuel line and a Russel polished aluminum fuel filter with -6 AN fitting size. Allows the use of lower profile, drop base air cleaner designs. An attractive and professional fuel line set up. 3E8131 A carburetor heat insulating divided base gasket. Designed for use with the Edelbrock carburetor shown above. Extra thick, .0320 to insulate the carburetor from heat to provide a cooler, denser fuel mixture for more power. While the Edelbrock carburetor above comes with a thin base gasket, this extra thick heat insulating gasket allows the carburetor to run cooler which provides a denser fuel mixture for more power. Available for both a divided gasket (#9266) for use with dual plane intake manifolds and an open center gasket (#9265) for use with single plane intakes. Find your style in the applications drop down box. Includes longer carburetor mounting studs to provide for the additional thickness of the gasket. 3E9266-9265APPLICATIONS:: DUAL PLANE INTAKE MANIFOLD 9266SINGLE PLANE INTAKE MANIFOLD 9265 Provides a Chevy mounting bracket for the throttle cable, Turbo 350 kickdown cable and cruise control cable. Designed for use with the Edelbrock carburetor shown above. Fits Chevy small block. All three positions are fully length adjustable. Mounts to the back intake manifold bolts on the drivers side of the engine. Super sturdy, heavy metal design with a durable gold iridited quality finish. 3E8036 Chrome throttle cable, Turbo 350 kickdown cable and cruise cable bracket. Desgined for use with the Edelbrock carburetor shown above. Fits Chevy small block. All three positions are fully length adjustable. Mounts to the back intake manifold bolts on the drivers side of the engine. Super sturdy, heavy metal design with attractive chrome show car quality finish. 3E8030 GM throttle cable, Turbo 350 transmission kick down cable bracket. Designed for use with the Edelbrock carburetor shown above. All positions are fully length adjustable. Chrome plated. Mounts to the drivers side rear carburetor mounting stud. Easy to install and make for a clean installation. 3S24283 A pair of throttle return springs, universal in design and engineered to provide positive throttle return for increased safety. Works great with the Edelbrock carburetor shown above and the throttle cable brackets shown. Inner and outer spring are Electro-Nickel bright plated to resist rust. Includes chrome-plated bracket that attaches to the drivers side, rear carburetor mounting stud. Springs can also mount to the throttle cable bracket. The other end of the springs fit into the bottom hole of the carburetors throttle linkage arm. Can also be used with many different throttle cable bracket designs. 3MRG19 GM throttle linkage stud to attach your GM throttle cable to the throttle linkage arm of the Edelbrock carburetor. Installs into the large upper hole on the carburetors throttle linkage arm and requires a bushing to space the hole. 7/32" diameter. 3H2037 This stud mounts the GM Turbo 350 kick down cable to the Edelbrock carburetors throttle linkage arm. Slips into the cables slider. 3H2040 A ball stud throttle stud assortment. Provides several ball sizes and stud sizes for various non-GM cables. Attaches to the Edelbrock carburetors throttle linkage arm, in the large upper hole. Requires a hole bushing for installation. 3H202 HOW TO ORDER: 1. If there is an applications box, click, then scroll the applications box to find your vehicle. 2. Click on your vehicle. 3. Click "add to cart" 4. Enter your information and submit order. 5. If there is no applications box, then just click "add to cart", then enter your information. HOURS: 11:00 am to 6:00 pm Monday - Friday Eastern Standard Time We welcome CANADIAN customers! For ordering information, click on "Orders To Canada" at the top left side of this page. We will not ship to freight forwarding - expediting companies. PAYMENT METHODS: PayPal, Visa, Mastercard, Discover, American Express, money orders.