{"product_id":"regulator-4-65-psi-w-return","title":"Holley Carb\/EFI Adjustable Billet By-Pass Regulator-6AN","description":"\u003cdiv class=\"full_description\"\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\" 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.\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eCarb\/EFI adjustable 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) 6AN O-ring Inlet, (1) 6AN O-ring Outlet, and (1) 6AN O-ring return\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\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"HOLLEY PERFORMANCE PRODUCTS","offers":[{"title":"Default Title","offer_id":47762701844712,"sku":"HLY 12-880","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0475\/3847\/1064\/files\/f959149389eea3cf97add804e10d1118f6707694.webp?v=1767722230","url":"https:\/\/generalstorespokane.com\/products\/regulator-4-65-psi-w-return","provider":"The General Store Spokane","version":"1.0","type":"link"}