Edelbrock Performer Series Carburetor Calibration Kit 1487 — metering rods, jets & springs for #1406 tuning

The Edelbrock 1487 Performer Series Carburetor Calibration Kit is a complete set of metering rods, jets, springs and hardware designed to fine-tune Performer carburetors for optimal throttle response and fuel metering.

If your engine is fitted with an Edelbrock Performer Series carburetor and you want to dial in fueling across different loads and conditions, this calibration kit supplies the commonly needed parts to do it. The kit is assembled for compatibility with part #1406 and provides a range of metering rods, jets, step-up springs and retaining hardware so you can test combinations and achieve smoother operation, better throttle transitions, and more consistent performance.

What parts are included in the 1487 calibration kit?

This kit groups the essential metering components and related springs into one assortment so you have options during tuning sessions. Parts are organized for immediate use and to match common service needs for Performer models.

• Multiple metering rods covering different tapers for rich-to-lean adjustments.
• A selection of main and idle jets to change base fuel flow.
• Step-up springs for controlling circuit engagement and transition strength.
• Pair of metering rod retaining springs and miscellaneous mounting hardware.

How will these components affect drivability and throttle response?

Changing metering rods, jets and step-up springs gives you control over how the carburetor meters fuel during idle, part-throttle, and full-throttle. Small incremental changes let you reduce hesitation, improve throttle tip-in, or lean the mixture where desired, without replacing the entire carburetor.

• Swap rods to alter fuel enrichment curves at different throttle openings.
• Try different jets to modify overall fuel volume and base mixture.
• Step-up springs adjust how and when richer circuits engage for smooth transitions.
• Retaining springs keep metering rods secure under vibration and load.

Is this kit compatible with my Edelbrock Performer carburetor?

The 1487 kit is specified to fit with Edelbrock part #1406 and is intended for Performer Series carburetors that use the same metering system. If your carburetor is a Performer Series model, review the carburetor part number and mounting details to confirm fitment before purchasing.

• Designed around Edelbrock Performer Series hardware and dimensions.
• Best suited for roadside tuning and workshop dialing of part #1406-equipped carbs.
• Not a universal kit — confirm carburetor compatibility first.

How should I use this kit when tuning my carburetor?

Start by recording the carburetor’s current components and engine behavior, then change one item at a time while road-testing or dyno-checking. Keep a log of each change and resulting performance so you can identify the optimal combination for your engine, altitude and driving style.

• Document initial jet, rod and spring settings before swapping parts.
• Make single-component changes and test drive to isolate effects.
• Use the provided retaining springs and hardware for secure installation.
• Consider environmental factors—altitude and temperature influence tuning choices.

Who is this for: The Edelbrock 1487 Performer Series Carburetor Calibration Kit is aimed at enthusiasts, professional tuners, and mechanics who maintain or tune Edelbrock Performer carburetors—especially those using part #1406. It’s suitable for street cars, classic restorations and mild performance builds where precise fuel metering and smooth throttle transitions matter. If you need a straightforward parts assortment to experiment with metering rod tapers, main/idle jet sizes and step-up springs, this kit gives you the components to refine your carburetor without wholesale replacement.