Billet Metering Block - Pro Series Adjustable

The Billet Metering Block - Pro Series Adjustable from Quick Fuel Technology is a precision fuel delivery component engineered for carbureted performance engines running Holley 4150 or Quick Fuel carburetor platforms. This component sits at the heart of your fuel system, regulating the exact amount of gasoline delivered to the engine under varying load and speed conditions. Whether you're tuning a street machine, bracket racer, or high-performance show engine, a quality metering block is essential for achieving consistent jetting and eliminating flat spots or stumbles during throttle transitions.

Constructed from billet aluminum and finished in vibrant red anodize, this Pro Series adjustable metering block combines durability with visual appeal on any engine bay. The billet design ensures superior precision and tight tolerances compared to cast alternatives, reducing fuel metering inconsistencies that plague older components. The adjustable nature of this block allows you to fine-tune fuel delivery without swapping internal jets or needles, making it ideal for tuners and enthusiasts who demand flexibility during dyno sessions or seasonal adjustments. Included gaskets and vent baffle ensure proper sealing and carburetor breathing, critical for maintaining accurate air-fuel ratios across the RPM range.

This metering block benefits anyone running a Holley 4150-style or Quick Fuel carburetor who needs direct control over fuel delivery tuning. The compact 3.4 x 2.2 x 5.7 inch footprint and lightweight 0.7 lb design make installation and removal straightforward, allowing quick carburetor service or mid-event adjustments at the track. Professional engine builders, serious carbureted drag racers, and street rod builders consistently choose billet metering blocks for their reliability and adjustability when dialing in peak performance and drivability across the powerband.