Achieve precise idle fuel mixture adjustments with Holley's Large Pairhead Style Idle Mixture Screws, engineered to enhance carburettor performance and fuel efficiency. Measuring 12.7 cm in length, these screws deliver the exact control needed for tuning your engine's idle settings. Explore the full description to understand how these components optimize your fuel system.

Ensure secure and reliable mounting of your carburettor air cleaner with this 9-inch long stud featuring a 5/16" thread. Precision-engineered by Aeroflow, it supports consistent engine performance and fits a range of carburettor models. Explore how this robust component enhances your fuel system’s stability.

Optimize carburettor performance with a versatile spring kit featuring seven different secondary diaphragm springs. Weighing just 0.05 kg and sized at 17.9 cm by 12.6 cm, this kit ensures precise tuning for varied engine demands. Explore the full description to understand how tailored spring selection enhances fuel delivery and response.

Ensure precise vacuum control with this Holley vacuum secondary diaphragm housing cover pair, designed to restore optimal carburettor function. Measuring 27.40 cm by 19.30 cm, these covers provide an exact fit to maintain system integrity and performance. Discover how this component enhances your fuel system’s reliability below.

Optimize your carburettor’s fuel delivery with this precisely engineered secondary metering plate featuring a .081 main and .040 idle size. Measuring 17.80 cm by 12.60 cm, it ensures consistent performance and reliable throttle response. Discover how this Holley component enhances your fuel system efficiency.