Description
Main Jet – 155 (Weber IDF / IDA / EMPI HPMX)
Ensure rich, consistent fuel delivery with this 155 main jet, built for Weber IDF, IDA, and EMPI HPMX carburetors. It delivers the precise amount of fuel needed for mid to high RPM performance, making it well-suited for high-displacement or aggressively tuned engines.
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Size: 155
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Fits: Weber IDF, IDA & EMPI HPMX carburetors
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Material: Precision-drilled brass for reliable flow
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Function: Regulates fuel through the main circuit under load
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Application: Ideal for performance VW engines with large venturis or upgraded internals
