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Emulsion Jet

Standard Emulsion Jet, .073" Jet Size

PART# 142-73

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Replacement emulsion jets for infinite tunability of the metering systems on the Ultra XP™ carburetors and the 0-80787-1 350CFM 2bbl. Click on Catalog Product Page for complete listing of jets and sizes.


  • Sizes from 00-78
  • Standard Emulsion Jet
  • .073" Jet Size
  • 6/32 Thread
  • 2 per Package


Emission Code5
Product TypeEmulsion Jet
WarrantyLimited 90 Day
Part Number142-73



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits All Holley Ultra XP™ & Doninator® Billet Metering Blocks. Holley does not recommend changing emulsion jets unless you are a competent carburetor tuner and have the correct test equipment to record the changes.

Warranty Information

Limited 90 Day: See Details
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