Quick Fuel Technology Carburetor Metering Jet
Precision Fuel Metering from Quick Fuel Technology
When it comes to dialing in the perfect air/fuel ratio for a carbureted engine, few components carry as much tuning weight as the carburetor metering jet. Quick Fuel Technology (QFT) has built its reputation on the kind of meticulous fuel-system engineering that makes their carburetor metering jets a go-to choice for racers and performance enthusiasts alike. These aren't afterthoughts — they're the same precision parts engineered alongside QFT's legendary carburetors.
What Makes QFT Metering Jets Stand Out
Stamped identification and paired sales are hallmarks of the QFT metering jet lineup. Individual jets are clearly stamped with their jet number — a critical detail when you're swapping jets trackside and can't afford a mix-up. Jets are also sold in pairs, so both primary and secondary circuits can be addressed in a single purchase, streamlining the tuning process.
QFT's gas main jets feature a standard 1/4-inch thread pitch and are available across a wide range, covering jet sizes from the mid-60s up through #110 and beyond. This broad size range means tuners can work through fueling adjustments in fine increments, whether correcting a lean surge at steady throttle or richening the mixture for a modified, higher-compression combination.
For tuners who need to evaluate a wide swath of the tuning window in one shot, QFT also offers jet assortment kits — bundled sets spanning multiple jet sizes (such as #75 through #110, four of each) that make it practical to run back-to-back comparisons without ordering piecemeal. A dedicated jet installation tool (part 36-469QFT) rounds out the lineup, designed specifically for use with standard main jets #64–110 and compatible with quick-change jet fuel bowls for fast, trackside swaps.
Engineered to Match QFT's Own Carburetors
Quick Fuel Technology designs and manufactures components like jets, metering blocks, accelerator pumps, air bleeds, and more, all made to the same exacting tolerances as their carburetors. That means QFT metering jets aren't generic replacement parts — they're calibrated to work seamlessly within the broader QFT fuel-delivery ecosystem, including popular carb families like the Q-Series, Brawler, and Slayer lines. The air/fuel ratio in the main circuit is controlled by the main metering jets, and if an engine surges at steady RPM, the mixture is likely too lean and the main jets need to be increased in size. Having the right jet on hand — and trusting its dimensional accuracy — is the difference between a crisp tune and a frustrating day at the track.
Quick Fuel Technology carburetors and components let you take precise control of your air/fuel system, with no other carburetors allowing you to adjust, tune, and customize as many aspects of fuel delivery. Their metering jets are a natural extension of that philosophy: small parts with a big impact on how an engine performs under real-world and racing conditions.
Who Should Use QFT Metering Jets
- Drag racers and circle track competitors fine-tuning carburetor calibration between rounds
- Street/strip builders optimizing a fresh engine build for consistent power
- Rebuilders replacing worn or incorrectly sized jets in existing QFT or compatible Holley-pattern carburetors
- Tuners who value clearly identified, same-size-matched pairs for reliable swaps
Whether you're starting from scratch with a jet assortment kit or chasing a single size to nail a specific fuel curve, Quick Fuel Technology metering jets deliver the precision and consistency that serious tuning demands. Explore the full selection of carburetor metering jets to find the right fit for your application.