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Features   Features 1-25 PSI High Performance- Adjustable high volume- by-pass Fuel Pressure Regulator Features: Carbureted version capable of low pressure of 1.5 PSI for Weber applications All applications offer high volume with limited restriction up to 25 PSI E85 and Ethanol Blended fuel compatible Boost-vacuum reference port (Turbo applications) will increase pressure to 1:1 linear raising rate up to about 18 PSI of boost pressure, above that at 0.8:1 rising rate this means the absolute fuel pressure to the carburetor is maintained no matter what it going on with the intake manifold. Construction: Two piece machined Billet body Large adjustment screw for wider more sensitive adjustments Large diaphragm for stable pressure values limits fuel pressure creep and drop off Extra-large 5 port inlet/outlet options for high flow and limited restriction 1-inlet(side) port is 3/4"- 16 SAE, O-ring sealing port fitting 1-Return by-pass to tank(bottom) is 3/4" - 16 SAE, O-ring sealing port fitting 3- Outlet ports, all outlets are 3/8" NPT WARNING: This product falls under CALIFORNIA PROPOSITION 65

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