This is an official Holley Performance Factory Refurbished Carburetor listing. Factory Refurbished carbs are NOT old worn-out carbs that have been rebuilt. They are carbs that were returned under warranty. When these carbs are returned, we check them out and most of the time there is nothing wrong with them. Generally, they were simply adjusted out of working range by the installer. Since these carbs may show signs of a previous installation, our policy is not to sell them as new. Rather than scrapping them, we are making them directly available to the public. Not only does this help us control the costs of our new carbs, it allows you to get a great deal on a carburetor! Factory Refurbished carbs have undergone a thorough inspection. Any damaged parts that would effect performance have been replaced and the carbs are solvent cleaned before being wet-flow-tested on Holley's state-of-the-art flow benches allowing them to be recalibrated to new carb specs. Factory Refurbished carbs may have scratches, blemishes, and other visual flaws from previous installation.
Factory Refurbished Carburetors have limited availability.
Aluminum construction for 43% weight savings
Tumble polished finish holds shine longer
Billet metering blocks & base plates
Blue anodized billet aluminum metering blocks and base plate
Built in sight window for simple float adjustments
High-performance fuel curves
Holley Double Pumper® carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile.
The Ultra Double Pumper™ Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061–T6 billet aluminum. They weigh in at approximately 5 lbs. less than a comparable zinc carburetor.
The new Ultra Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction; anodized billet aluminum metering blocks and base plate; 4 corner idle for precise idle control; dual accelerator pumps for additional fuel under initial acceleration; mechanical secondaries for great performance; clear fuel level sight plugs for easy, no mess fuel level adjustments; Ford automatic transmission kickdown for use on popular Ford transmissions; four vacuum ports for all necessary vacuum accessories; and for the first time on a Double Pumper, factory pre–set electric choke for easy, fast cold start–ups.
The clean, polished look coupled with Blue metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.
Shiny with blue anodized billet aluminum metering blocks/base plate for good looks and true gasket sealing
Ultra Double Pumpers feature an Optimized street/strip calibration that works out-of-the-box
Factory preset electric choke for easy startups
Mechanical secondaries for awesome tire turning performance
4 corner idle allows you to precisely control your idle system
Built in, clear fuel level sight glass for easy, no mess fuel level adjustments
Aluminum construction for a 43% weight savings
Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Use our simple CFM calculator to learn what CFM you need:
Your ideal CFM range is XXX.
You should stay as close as you can to this CFM and should go no more than 50 CFM in either direction.
In order to get a proper estimate, we need a little more information from you.
Please contact Tech Service at
If you have any other questions, contact Tech Service at
How to pick a choke:
Manual chokes allow the user to control the warm up of their engine by physically pulling a cable inside the vehicle to control the choke plate. This type of choke is generally less expensive than an electric choke.
Electric chokes fully handle the warm up of your engine without your assistance. They operate off a single 12 volt switched power wire from your vehicle.