Ensure smooth, safe, and precise throttle operation with this Aluminum Throttle Linkage with Return Spring Kit. This complete system is designed to provide a reliable throttle connection and a built-in safety return mechanism for your engine, making it a perfect upgrade for a variety of applications. Key Features and Benefits: Smooth Operation: The throttle linkage is equipped with high-quality 1/4" rod ends, ensuring smooth, bind-free movement for a precise pedal feel. Universal & Customizable Design: The throttle rod is easily formed to fit many applications and can be shortened and re-threaded using a 1/4"-28 tap, offering immense versatility for custom builds. Built-in Safety: The included return spring kit is a critical safety feature that ensures the throttle closes completely. The kit provides both heavy and light rate return springs, allowing you to fine-tune the pedal feel to your preference. Carburetor Compatibility: This kit is designed to work seamlessly with 2300 2-barrel and 4150 4-barrel Holley-style carburetors. What's Included in the Kit: Throttle linkage with 1/4" rod ends Throttle rod Return spring kit, which includes: Heavy and light rate return springs Correct stepped bushings Mounting hardware Upgrade your throttle system with this reliable and fully adjustable linkage kit for a safe and responsive driving experience.