Quick Fuel carburetor secondary connecting rods allow you to tune your carb to your needs. The secondary connecting rods control the time that your secondary is open so that you have the ultimate control over how your carburetor is operating and can tune your car to its fullest potential. Quick Fuel includes the necessary hardware to install this linkage to get your performance car out on the track or street.

If you've upgraded to a 4-barrel carburetor or a Sniper 4-barrel EFI system, you might have noticed that the throttle can be a bit too responsive. This throttle linkage kit smooths out that throttle response, allowing the secondaries to open gradually—about 40% of the way through the main throttle travel. This fixed-link style opens the secondaries to approximately 97% of full throttle, with the remaining 3% difference being imperceptible to the driver.

For those using the Holley Sniper 4-Barrel EFI, ensure you're running Firmware version 1.1.1 or later on your ECU and handheld version 1.1.7 or later for compatibility.

Important Notes:

• If you're running ported vacuum on your distributor, this linkage will render it inoperable, as ported vacuum is only available once the throttle butterflies are slightly open. Holley has designed this system to incorporate ported vacuum on the secondaries, rather than the primaries.
• Not compatible with Stealth Sniper versions or XFlow versions.

This kit is the perfect solution for improving throttle control and making your vehicle more responsive without the sudden jumps in power that can sometimes occur.