{"product_id":"holley-12-879-adjustable-billet-by-pass-fuel-regulator","title":"Holley 12-879 - Adjustable Billet By-Pass Fuel Regulator","description":"\u003cp\u003eHolley 12-879 - Adjustable Billet By-Pass Fuel Regulator\u003c\/p\u003e\u003cp\u003eFuel Pressure Regulator - HP Billet - 4 to 65 psi - In-Line - 3\/8 in NPT Inlet - 3\/8 in NPT Outlet - 3\/8 in NPT Return - 1\/8 in NPT Port - Bypass - Aluminum - Black \/ Clear Anodized - Diesel \/ E85 \/ Gas - Each\u003c\/p\u003e\u003cp\u003eAdjustable Billet By-Pass Fuel Regulator; Adjustable; 4-65 psi.; 3\/8 in. NPT Outlet\/Inlet; Boost Reference 1 To 1; EFI Bypass Style; Black Anodized Base\/Clear Anodized Top;\u003c\/p\u003e\u003cp\u003eHolley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision machined from 6061-T6 billet aluminum for strength and durability. These regulators are adjustable from 4-65 psi and will handle both carbureted and EFI applications. A second pressure spring is included allowing you to increase the fuel pressure range up to 65 psi for EFI systems. They are offered with two port sizes, 3\/8 in. NPT or 6AN to adapt to your new or existing fuel lines. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, these regulators will have you covered either way.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAdjustable from 4-65 psi for precise fuel pressure adjustments\u003c\/li\u003e\n\u003cli\u003eConstructed of billet aluminum with a black anodized base and a clear anodized top for good looks\u003c\/li\u003e\n\u003cli\u003eUsed in systems with a return line back to the tank\u003c\/li\u003e\n\u003cli\u003e(1) 3\/8” NPT Inlet; (1) 3\/8” NPT Outlet; and (1) 3\/8” NPT Return Port\u003c\/li\u003e\n\u003cli\u003eIncludes fitting for manifold reference\u003c\/li\u003e\n\u003cli\u003eIncludes an 1\/8 NPT gauge port\u003c\/li\u003e\n\u003cli\u003eBoost Reference - 1:1\u003c\/li\u003e\n\u003cli\u003eThe 4-15 psi carbureted spring comes installed in the regulator\u003c\/li\u003e\n\u003cli\u003eCompatible with diesel fuel and E85\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAdjustable\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eHolley\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eAir and Fuel Delivery\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: \u003cspan\u003eBlack\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel System\u003c\/strong\u003e: \u003cspan\u003eEFI\/Carb\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: \u003cspan\u003eGasoline\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGauge Port\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInlet Port Diameter\u003c\/strong\u003e: \u003cspan\u003e3\/8\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInlet Quantity\u003c\/strong\u003e: \u003cspan\u003e1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: \u003cspan\u003e3\/8 inch NPT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInlet Type\u003c\/strong\u003e: \u003cspan\u003eNPT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hardware Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: \u003cspan\u003eInline\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutlet Port Diameter\u003c\/strong\u003e: \u003cspan\u003e3\/8\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutlet Quantity\u003c\/strong\u003e: \u003cspan\u003e1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: \u003cspan\u003e3\/8 inch NPT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutlet Type\u003c\/strong\u003e: \u003cspan\u003eNPT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003epart type\u003c\/strong\u003e: \u003cspan\u003eFuel Pressure Regulator\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePort Quantity\u003c\/strong\u003e: \u003cspan\u003e3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eFuel Pressure Regulator\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eReturn Size\u003c\/strong\u003e: \u003cspan\u003e3\/8 inch NPT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: \u003cspan\u003eBypass\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSub Category\u003c\/strong\u003e: \u003cspan\u003eCarburetion\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: \u003cspan\u003eManufacturer's Limited 90 Day Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Holley","offers":[{"title":"Default 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