Aluminum construction for 43% weight savings
Hard Core Gray™ anodized finish
Billet metering blocks & base plates
Black anodized billet aluminum metering blocks and base plate
Built in sight window for simple float adjustments
High-performance fuel curves
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; 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, stealthy look coupled with Black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.
Hard Core Gray™ w/ black anodized billet aluminum metering blocks/base plate. Casting is hard coat anodized for ultimate corrosion resistance
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!
*Free Shipping & Handling only offered to the contiguous US on orders over $100.
Some parts are not legal for use in California or other states with similar regulations.
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.