Carter AFB AVS 4 Barrel Metering Rod Springs S101

Carter 4 barrel carburetor metering rod springs. Fits AFB, AVS & Edelbrock.

The metering rods are of a step design and are controlled by vacuum and metering rod spring action. At low speeds the metering rod is dropped down into the primary main jets, thus partially closing off the flow of
fuel. At higher speeds and less vacuum the rods pull up from the main jets allowing more fuel to flow. Experiment with different springs in order to remove any flat spots, especially if the engine is running any kind of performance camshaft.

If you are not sure which spring to start with select the orange.

Carter AFB, 4 barrel metering rod springs. Includes 10 springs, two springs for each color. See #17 in the illustration.

Blue

Yellow

Orange

Pink

Silver

3HG

4HG

5HG

7HG

8HG