Tech Note: Most applications may require more fuel for the nitrous system than a standard petcock will allow. If you require more fuel flow, dual-feed high-flow petcocks are available. Please contact the NOS Technical Support Department for more informati
Touch the button and your “hawg” turns into a wild boar. With a super strong bottom end, Harley engines can take more pushbutton horsepower than most. And, the fully adjustable Fogger™ lets you choose how much is just right. With the jets included in each Harley kit, you can expect to see a 30% to 40% increase in horsepower and torque. Plus, the Fogger™ can be adjusted for even more (or less) power by simply changing jets if your engine is modified. Easily installed in an afternoon, the Fogger™ kit comes complete with everything you need; including detailed, easy to follow instructions, nitrous and fuel solenoids, Fogger2™ nozzles, filters, fittings, tubing, fuel pumps, T-fittings, jets, switch, hose, and all other hardware necessary for a complete installation. Please contact the NOS Technical Support Department for jet recommendations before you make any changes.
Holley 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. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, 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 Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Holley 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. Read More...