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#424Q850
Quick Fuel Q-850 Q-Series Carburetor 850CFM Drag Race
$1,105.95
/each
Factory Shipped
$1,229.95
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Product Summary
4-Barrel Carburetor Barrels, Gasoline Fuel Type
Rebates Available
See rebate detailsKey Specs
| Carburetor Barrels | 4-Barrel |
| Fuel Type | Gasoline |
| Choke Type | No Choke |
| CFM Range | 800-899 CFM |
| CFM | 850 CFM |
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Return PolicyQuick Fuel Technology Q-850 Details
Quick Fuel Technology Q-850 Details
Ideally suited for bracket racers and weekend warriors alike, Q-Series carburetors are purpose-built for the dragstrip. To combat the g's experienced during hard launches, Q-Series carbs are equipped with notched floats and secondary jet extensions. The high-flow aluminum main body isn't just lightweight, but it also features recessed air bleed cavities for improved air flow. Die-cast venturi are machined to exacting tolerances for outstanding throttle response. Billet metering blocks ensure a uniform fuel curve, while throttle-bodies enhance durability. For those days when track conditions vary from one pass to the next, QFT's QuickLink system makes adjusting the secondaries easy on models equipped with mechanical secondaries. The Q-Series is our most comprehensive line of carburetors, with applications available for use with gasoline, methanol, and E85 fuels, forced induction, drag race, circle track, and comes in both vacuum and mechanical secondary models.
Rebates
Holley October Promo 10% Off Select Parts Sale
Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.
CARB Warning
For use on pre-1966 vehicles only
CARB Warning
For use on pre-1966 vehicles only
Quick Fuel Technology Q-850 Specifications
Quick Fuel Technology Q-850 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | Q-850 |
| Brand | Quick Fuel Technology |
| Carburetor Barrels | 4-Barrel |
| Fuel Type | Gasoline |
| Choke Type | No Choke |
| CFM Range | 800-899 CFM |
| CFM | 850 CFM |
| Carburetor Flange Type | 4-Barrel Square Bore |
| Finish | Polished |
| Material Type | Aluminum |
| Color | Silver/Red |
| Secondary Type | Mechanical |
| Fuel Inlet Type | Dual |
| Gasket(s) Included | Yes |
| New or Remanufactured | New |
| Throttle Linkage Type | Universal |
| Supercharged Application | No |
| GENERAL | |
| Booster | Down-leg |
| Bolt Hole Pattern | 5.160" x 5.625" |
| Carburetor Height | 3.25 |
| Primary Power Valve | 4.5 Hg |
| Primary Jet Size | 76 |
| Secondary Jet Size | 84 |
| Primary Outer Air Bleed Sizes Included | 70 |
| Primary Inner Air Bleed Sizes Included | 33 |
| Secondary Outer Air Bleed Sizes Included | 70 |
| Secondary Inner Air Bleed Sizes Included | 33 |
| GTIN Code | 849804001017 |
| Sold in Quantity | Each |
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