Holley 0-80555C Holley 650 cfm spread bore carburetor model number 4175. A good replacement for the GM Quadrajet carburetor. Electric choke. Single feed fuel inlet. Vacumm secondaries. Vacuum ports for PCV, EGR, power brakes, distributor, air cleaner and canister. Base gasket included. Universal calibration, some tuning in the nature of jet changes or power valve changes may be required to match this carburetor to your specific engine combination. Holley 0-80555C Holley model 4175 carburetor Holley spread bore carb Quadrajet replacement carburetor HOLLEY-0-80555C 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.