Holley products have been the undisputed leader in fuel systems for over 100 years. Holley carburetors power every NASCAR Sprint Cup team and every NHRA Pro–Stock champion. Holley's products include performance fuel pumps, fuel injection, intake manifolds, cylinder heads & 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. For High Perf. Fuel Injection For Large Nitrous Systems Adjustable From 5-50 psi Simple Spring Change Features 1 Inlet and 3 Outlet Ports All 0.25 in. NPT Threads Additional Attributes: GTIN: 00090127512715 Color: Blue Inlet Size: 0.125 in. NPT Maximum PSI: 125 Outlet Size: Dual 0.125 in. NPT WARNING CA Proposition 65: No Packaging: Quantity of Each: Package UOM: Dimension: 5.4400 x 3.8800 x 6.7500 inches