Holley 850 Cfm Ultra Double Pumper Carburetor - Hard Core Gray

Discover the ULTRA advantage with the Holley Ultra Double Pumper™ Carburetors, a perfect fusion of lightweight design and high-performance features.

ULTRA light

• Aluminum construction for an extraordinary 43% weight savings

ULTRA shiny

• Tumble-polished finish for prolonged shine

ULTRA strong

• Billet metering blocks & base plates ensure durability

ULTRA cool

• Black anodized billet aluminum metering blocks and base plate add a sleek touch

ULTRA easy

• Built-in sight window for effortless float adjustments

ULTRA fast

• High-performance fuel curves for optimum power

Holley Double Pumper® carburetors have a rich history, dominating factory muscle cars and propelling vehicles across the finish line. The Ultra Double Pumper™ Carburetors take this legacy forward with an all-aluminum construction featuring 6061-T6 billet aluminum metering blocks and base plates, weighing nearly 5 lbs. less than their zinc counterparts.

These carburetors boast an enhanced fuel curve for peak performance and a host of features: anodized black billet aluminum metering blocks and base plate, 4 corner idle for precise control, dual accelerator pumps for added initial acceleration fuel, mechanical secondaries for outstanding performance, clear fuel level sight plugs for easy adjustments, Ford automatic transmission kickdown compatibility, four vacuum ports for accessories, and a factory pre-set electric choke for rapid cold start-ups – a first for Double Pumper models.

With a stealthy appearance and black anodized components, the Ultra Double Pumpers are sure to turn heads at the show or on the track.

Features:

• Hard Core Gray with black anodized billet aluminum metering blocks/base plate for a stylish look and secure gasket sealing
• Ultra Double Pumpers feature an Optimized street/strip calibration that works out-of-the-box
• Factory preset electric choke for effortless startups
• Mechanical secondaries for impressive tire-turning performance
• 4 corner idle for precise control of the idle system
• Built-in clear fuel level sight glass for mess-free adjustments
• Aluminum construction for a remarkable 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 ensure it arrives ready to run!