Replacement emulsion jets for infinite tunability of the metering systems on the Ultra HP™ carburetors and the 0-80787-1 350CFM 2bbl.
Click on Catalog Product Page for complete listing of jets and sizes.
Fits All Holley Ultra HP™ & Doninator HP® 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.
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Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Holley's products include performance fuel pumps, fuel injection, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies, Hooker Headers, Flowtech Headers, NOS, Weiand, or Earl's, Holley products can give you the edge you need over the competition.