Throttle Return Spring Dual Throttle Return Spring Kit for Holley 2300 2305 4150 4160 Carburetor

Packing Size: 120.00x115.00x35.00mm/4.72x4.53x1.38inchMaterial: Steel + Copper Nickel + Chrome PlatingNote:Due to different monitor and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding!Please allow a 1-2 cm difference in measurements due to manual measuring.1*Throttle Return Kit

• Snaps Throttle Back to Idle: The spring tension pulls the throttle closed automatically when you release it, helping the engine settle back to a steady idle speed
• Varied Lengths for Different Setups: Multiple spring sizes let you match the linkage geometry of your specific engine without modifying existing hardware
• Drop-In Design: Springs slide directly onto the throttle shaft—no need for special tools or disassembly in most cases
• Outdoor-Ready Build: A protective coating on the spring surface helps resist moisture and keeps the action smooth over time
• Install Tip: Before replacing, compare the free length and wire thickness of the old and new springs; install with the hooks facing the same direction as the original to keep the tension right