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New at Summit Racing: Quick Fuel Black Diamond Carburetors
It’s not every day that you can find a combination of outstanding performance and good looks like these Quick Fuel Black Diamond Carburetors. Quick Fuel gave its Q-Series and SS-Series carburetors a satin black PTFE Teflon® coating that is impact and scratch-resistant as well as impervious to underhood chemicals. The coating also helps reduce fuel temperature by six percent, which helps improve performance.
The Black Diamond Q-Series carburetors are based on a high-flow Proform aluminum main body with blended venturi areas to smooth out airflow, plus screw-in idle bleeds, high-speed air bleeds, and accelerator pump discharge nozzles. The carburetors have a billet aluminum throttle baseplate and CNC-machined billet metering blocks with four-corner idle system to provide more precise fuel metering. That improves throttle response and provides a more uniform fuel performance curve. Other features include jet extensions and notched secondary floats. The mechanical secondary Q-Series carburetors are set up for drag racing and are available in 650, 750, 850, and 950 cfm ratings.
The Black Diamond SS-Series carburetors are designed for street and bracket racing use. The all-aluminum carburetors have billet throttle bodies and metering blocks, so they weigh five pounds less than typical die-cast zinc models. Features include replaceable idle feed, power valve channel restrictions, idle air bleeds, and high-speed air bleeds for excellent tunability. The vacuum secondary models have a solid-state electric choke and fuel bowls with single-sight glass windows. The mechanical secondary models have 4500-style dual inlet fuel bowls with dual-sight glass windows, plus additional links to tune the secondary opening rate.
If you have a small block Chevy, you can match a Black Diamond carburetor with Quick Fuel’s Black Diamond intake manifold. The dual plane intake has the same coating and is designed for engines making power from idle through 5,500 rpm.
SEE QUICK FUEL’S BLACK DIAMOND CARBURETORS AND MANIFOLD AT SUMMIT RACING