{"product_id":"edelbrock-carburetor-step-up-spring-kit-pack-of-5-color-coded-3-8-hg-tensions-for-precise-throttle-tuning","title":"Edelbrock Carburetor Step-Up Spring Kit — Pack of 5, Color-Coded 3–8 Hg Tensions for Precise Throttle Tuning","description":"\u003cp\u003e\u003cstrong\u003eEdelbrock 1464 is a five-spring, color-coded step-up spring kit designed to let you precisely tune carburetor throttle response and progression.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit includes one each of the 3 Hg (blue), 4 Hg (yellow), 5 Hg (orange), 7 Hg (pink) and 8 Hg (plain) steel step-up springs used to adjust the rate at which the carburetor opens as engine load changes. Each spring offers a different tension characteristic so you can match idle transition, part-throttle driveability and full-throttle response to your engine and vehicle setup. The springs are compact, vehicle-specific fitment items packaged in the United States and sold in packs of five for convenient swapping during tuning sessions.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these step-up springs affect carburetor behavior?\u003c\/h3\u003e\n\u003cp\u003eStep-up springs control how quickly the throttle plates or metering block advance when the throttle begins to open. Softer springs allow smoother, slower progression while stiffer springs produce quicker, more immediate throttle response. By choosing the correct spring you can reduce flat spots, eliminate hesitation and improve overall drivability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes five tension levels for gradual to aggressive progression.\u003c\/li\u003e\n  \u003cli\u003eColor-coded for quick identification during tuning.\u003c\/li\u003e\n  \u003cli\u003eSteel construction retains consistent spring rate under heat and use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich spring colors correspond to which tensions and when should I use each?\u003c\/h3\u003e\n\u003cp\u003eEach spring in the kit is marked by color and Hg rating to indicate relative stiffness. Use the lower Hg (blue 3 Hg) for the softest progression and the highest Hg (plain 8 Hg) for the firmest response; intermediate colors cover common tuning needs. Swap springs incrementally to find the balance between smooth part-throttle performance and crisp throttle entry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBlue — 3 Hg: softest, best for very smooth transitions.\u003c\/li\u003e\n  \u003cli\u003eYellow — 4 Hg and Orange — 5 Hg: mid-range options for typical street setups.\u003c\/li\u003e\n  \u003cli\u003ePink — 7 Hg and Plain — 8 Hg: stiffer choices for aggressive response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install or change a step-up spring on my carburetor?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone familiar with basic carburetor linkage work: remove the air cleaner, access the throttle linkage, and replace the small spring where the accelerator pump or metering lever uses the step-up function. No special tools are required, though needle-nose pliers and a steady hand make the job quicker. Always test drive after each change to evaluate the effect before making additional swaps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove air cleaner to access the linkage area.\u003c\/li\u003e\n  \u003cli\u003eUse pliers to unhook the old spring and attach the new color-coded spring.\u003c\/li\u003e\n  \u003cli\u003eTest drive and adjust progressively—change one spring at a time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these springs fit my vehicle and what should I check first?\u003c\/h3\u003e\n\u003cp\u003eThe Edelbrock 1464 springs are designed for vehicle-specific carburetor applications; confirm compatibility with your carburetor model or Edelbrock parts list before ordering. Verify that your carburetor uses the same style of step-up spring location and tension system. If in doubt, consult your vehicle’s carburetor manual or contact Edelbrock technical support for fitment guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck your carburetor model and Edelbrock compatibility charts.\u003c\/li\u003e\n  \u003cli\u003eInspect the existing spring mounting point for matching fit and length.\u003c\/li\u003e\n  \u003cli\u003eKeep the original spring as a reference while testing new tensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Edelbrock 1464 five-spring step-up kit is ideal for mechanics, performance tuners and DIY enthusiasts who want fine-grained control over carburetor throttle progression. It’s suitable for street machines, classic restorations and mild performance builds where dialed-in part-throttle behavior and smoother transitions matter. Because the springs are color-coded and supplied in a small pack, the kit is also handy for shops that perform frequent carburetor adjustments or restorations.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What springs are included in the Edelbrock 1464 kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes one each of 3 Hg (blue), 4 Hg (yellow), 5 Hg (orange), 7 Hg (pink) and 8 Hg (plain) steel step-up springs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install these springs myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Basic linkage access and needle-nose pliers are usually all you need; test drive after each swap to evaluate tuning changes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":48084389200030,"sku":"B0006HNP5Y","price":30.42,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/edelbrock-step-up-springs-pack-front.jpg?v=1785853146","url":"https:\/\/northtrailauto.ca\/products\/edelbrock-carburetor-step-up-spring-kit-pack-of-5-color-coded-3-8-hg-tensions-for-precise-throttle-tuning","provider":"North Trail Auto","version":"1.0","type":"link"}