Description
Holley 850 CFM Ultra Double Pumper Carburetor with Blue Billet Components
Engineered for high-performance street and drag strip applications, the Holley Ultra Double Pumper (MPN 0-76850BL) combines an 850 CFM rating with all-aluminum construction and blue anodized 6061-T6 billet aluminum metering blocks and base plate. Delivering up to 43% weight savings over standard zinc carburetors, this 4150 square-flange unit features an electric choke, mechanical secondaries, dual accelerator pumps, and 4-corner idle adjustment for ultimate throttle response and precision tuning.
Key Product Features
- ☑ Lightweight All-Aluminum Construction: Provides approximately 5 lbs of weight savings (43% lighter) compared to zinc carburetors.
- ☑ 6061-T6 Billet Aluminum Blocks: Precision CNC-machined blue anodized metering blocks and base plate for maximum strength and reliable gasket sealing.
- ☑ 850 CFM Flow Capacity: Calibrated street/strip fuel curve optimized for high-horsepower engines and lightweight vehicles.
- ☑ Factory Pre-Set Electric Choke: Ensures fast, dependable cold start-ups without installing manual choke cables.
- ☑ 4-Corner Idle System: Allows precise idle control across all four barrels for improved tuning and engine stability.
- ☑ Built-In Sight Glass Windows: Clear fuel level sight plugs allow easy, mess-free float adjustments.
Technical Specifications
| Brand | Holley |
|---|---|
| Manufacturer Part Number | 0-76850BL |
| CFM Rating | 850 CFM |
| Carburetor Flange | 4150 Square Flange |
| Main Body Finish | Tumble Polished / Shiny Aluminum |
| Metering Block & Base Plate Finish | Blue Anodized 6061-T6 Billet Aluminum |
| Choke Type | Electric Choke |
| Secondary Type | Mechanical Secondaries |
| Primary / Secondary Jets | 80 / 80 |
| Primary Power Valve | 6.5 |
| Pump Nozzle Size | 31 Primary / 31 Secondary |
| Vacuum Ports | 1 Timed Spark, 2 Full Vacuum, 1 PCV Port |
What's Included in the Box
- 1x Holley 850 CFM Ultra Double Pumper Carburetor (PN 0-76850BL)
- 1x Electric Choke Wire Harness
- 1x Flange Mounting Gasket
- 1x Air Cleaner Base Gasket
- 1x Mounting Hardware Kit
Every Holley Ultra Double Pumper carburetor is 100% wet-flow tested by Holley technicians prior to dispatch to guarantee out-of-the-box readiness. At JP Racing, we deliver authentic Holley performance fuel components direct to your workshop with expert technical support and fast UK shipping.
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