{"id":1149,"date":"2026-10-11T13:52:34","date_gmt":"2026-10-11T13:52:34","guid":{"rendered":"https:\/\/www.jlinlin.com\/?post_type=product&#038;p=1149"},"modified":"2026-10-11T13:54:48","modified_gmt":"2026-10-11T13:54:48","slug":"500-cfm-2-barrel-carburetor-fuel-system-upgrade-bundle","status":"publish","type":"product","link":"https:\/\/www.jlinlin.com\/index.php\/product\/500-cfm-2-barrel-carburetor-fuel-system-upgrade-bundle\/","title":{"rendered":"500 CFM 2-Barrel Carburetor Fuel System Upgrade Bundle"},"content":{"rendered":"<p><h2>Specifications<\/h2>\n<\/p>\n<h2>Product Details<\/h2>\n<p>Your carburetor is only as good as the fuel system feeding it. An aging mechanical fuel pump, a missing pressure regulator, or a carburetor that&#8217;s never been tuned \u2014 any one of these can ruin drivability. The Carburetor Fuel System Upgrade Bundle replaces the entire fuel delivery chain with three matched components:<\/p>\n<ul>\n<li>\n<span style=\"text-decoration: underline;\"><strong><a href=\"https:\/\/www.ievilenergy.com\/products\/500-cfm-2-barrel-street-carburetor\">500 CFM 2-Barrel Street Carburetor<\/a><\/strong><\/span> \u2014 Electric choke, #74 main jets, 50cc accelerator pump, polished aluminum body<\/li>\n<li>\n<span style=\"text-decoration: underline;\"><strong><a href=\"https:\/\/www.ievilenergy.com\/products\/12v-fuel-pump-for-carb\">12V Electric Fuel Pump for Carb<\/a><\/strong> <\/span>\u2014 345\u2013370 LPH external gear pump, aluminum body, -68\u00b0F to 194\u00b0F operating range<\/li>\n<li>\n<span style=\"text-decoration: underline;\"><strong><a href=\"https:\/\/www.ievilenergy.com\/products\/carburetor-fuel-pressure-regulator\">Adjustable Fuel Pressure Regulator (4.5\u20139 PSI)<\/a><\/strong><\/span> \u2014 6061-T6 aluminum alloy body, 3\/8-inch NPT ports, pressure gauge included<\/li>\n<\/ul>\n<h4>500 CFM 2-Barrel Street Carburetor<\/h4>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td><strong>Brand<\/strong><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>CFM Rating<\/strong><\/td>\n<td>500 CFM<\/td>\n<\/tr>\n<tr>\n<td><strong>Barrels<\/strong><\/td>\n<td>2-Barrel, Single-Stage<\/td>\n<\/tr>\n<tr>\n<td><strong>Choke Type<\/strong><\/td>\n<td>Electric Choke<\/td>\n<\/tr>\n<tr>\n<td><strong>Fuel Inlet<\/strong><\/td>\n<td>Single<\/td>\n<\/tr>\n<tr>\n<td><strong>Main Jets<\/strong><\/td>\n<td>#74<\/td>\n<\/tr>\n<tr>\n<td><strong>Accelerator Pump Nozzle<\/strong><\/td>\n<td>0.028 inch<\/td>\n<\/tr>\n<tr>\n<td><strong>Accelerator Pump Capacity<\/strong><\/td>\n<td>50 cc<\/td>\n<\/tr>\n<tr>\n<td><strong>Power Valve<\/strong><\/td>\n<td>5.0 Hg<\/td>\n<\/tr>\n<tr>\n<td><strong>Venturi Diameter<\/strong><\/td>\n<td>1.376 inch<\/td>\n<\/tr>\n<tr>\n<td><strong>Throttle Bore Diameter<\/strong><\/td>\n<td>1.688 inch<\/td>\n<\/tr>\n<tr>\n<td><strong>Carburetor Height<\/strong><\/td>\n<td>3.25 inch<\/td>\n<\/tr>\n<tr>\n<td><strong>Material (Carburetor Body)<\/strong><\/td>\n<td>Aluminum \u2013 Polished Shiny Finish<\/td>\n<\/tr>\n<tr>\n<td><strong>Mounting Flange<\/strong><\/td>\n<td>2-Barrel Square Bore, 4-Hole<\/td>\n<\/tr>\n<tr>\n<td><strong>Linkage Attached<\/strong><\/td>\n<td>Yes \u2013 Compatible with GM, Ford, Chrysler A\/T kickdown<\/td>\n<\/tr>\n<tr>\n<td><strong>Condition<\/strong><\/td>\n<td>New \u2013 100% Wet-Flow Tested<\/td>\n<\/tr>\n<tr>\n<td><strong>SKU<\/strong><\/td>\n<td>EVFS23-00059SR-001-L<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>12V Electric Fuel Pump for Carb<\/h4>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td><strong>Voltage<\/strong><\/td>\n<td>12V\u201313.5V DC<\/td>\n<\/tr>\n<tr>\n<td><strong>Flow Rate<\/strong><\/td>\n<td>345\u2013370 LPH (10\u201311 PSI) \/ 320\u2013345 LPH (7\u20139 PSI)<\/td>\n<\/tr>\n<tr>\n<td><strong>Closed Pressure<\/strong><\/td>\n<td>14 PSI (Type 1) \/ 13 PSI (Type 2)<\/td>\n<\/tr>\n<tr>\n<td><strong>Max Power<\/strong><\/td>\n<td>88W<\/td>\n<\/tr>\n<tr>\n<td><strong>Temperature Range<\/strong><\/td>\n<td>-68\u00b0F to 194\u00b0F<\/td>\n<\/tr>\n<tr>\n<td><strong>Inlet \/ Outlet<\/strong><\/td>\n<td>3\/8 inch (with 3\/8 NPSF to 5\/16&#8243; barb adapters included)<\/td>\n<\/tr>\n<tr>\n<td><strong>Installation Location<\/strong><\/td>\n<td>External (out-of-tank), below fuel tank for gravity feed<\/td>\n<\/tr>\n<tr>\n<td><strong>Pump Type<\/strong><\/td>\n<td>Gear-Type Electric Fuel Pump<\/td>\n<\/tr>\n<tr>\n<td><strong>Material (Fuel Pump Body)<\/strong><\/td>\n<td>Aluminum \u2013 Corrosion Resistant<\/td>\n<\/tr>\n<tr>\n<td><strong>Compatible Media<\/strong><\/td>\n<td>Gasoline and Diesel (use with in-line filter recommended)<\/td>\n<\/tr>\n<tr>\n<td><strong>Gross Weight<\/strong><\/td>\n<td>1.4 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>Adjustable Fuel Pressure Regulator (4.5\u20139 PSI)<\/h4>\n<table style=\"width: 100%;\">\n<thead>\n<tr>\n<td style=\"text-align: left;\"><strong>Specification<\/strong><\/td>\n<td style=\"text-align: left;\"><strong>Details<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Adjustable Pressure Range<\/strong><\/td>\n<td>4.5\u20139 PSI (adjusted via set screw on top)<\/td>\n<\/tr>\n<tr>\n<td><strong>Inlet \/ Outlet Ports<\/strong><\/td>\n<td>Two 3\/8&#8243; NPT (Feed\/Return) + 1\/8&#8243; NPT Gauge Port<\/td>\n<\/tr>\n<tr>\n<td><strong>Vacuum Reference<\/strong><\/td>\n<td>Vacuum\/Boost line connection port present<\/td>\n<\/tr>\n<tr>\n<td><strong>Material<\/strong><\/td>\n<td>6061-T6 Aluminum Alloy \u2013 Anodized Finish<\/td>\n<\/tr>\n<tr>\n<td><strong>Pressure Gauge Included<\/strong><\/td>\n<td>Yes \u2013 4.5\u20139 PSI gauge<\/td>\n<\/tr>\n<tr>\n<td><strong>Fuel Compatibility<\/strong><\/td>\n<td>Gasoline, Diesel, E85, Ethanol\/Alcohol (CPE\/nylon braided lines NOT compatible with E85; use PTFE-lined hose)<\/td>\n<\/tr>\n<tr>\n<td><strong>Application<\/strong><\/td>\n<td>Universal \u2013 Low-pressure carburetor systems only (not for EFI)<\/td>\n<\/tr>\n<tr>\n<td><strong>Mounting Bracket<\/strong><\/td>\n<td>Included<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><h2>Description<\/h2>\n<\/p>\n<h2>About this item<\/h2>\n<p>Hard starts, flooding after hot soaks, and throttle response that changes with RPM \u2014 these aren&#8217;t carburetor problems, they&#8217;re <strong>fuel system problems<\/strong>. The <strong>500 CFM 2-barrel carburetor fuel system upgrade bundle<\/strong> replaces the entire fuel delivery chain: a street-proven carburetor, a steady-flow 12V electric fuel pump, and a precision adjustable pressure regulator \u2014 all matched to work together in one box.<\/p>\n<p><img decoding=\"async\" alt=\"\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/200_x_225_50_x_50_1.webp?v=1783387905\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<h2>Key Features of the Carburetor Fuel System Upgrade Bundle<\/h2>\n<ul>\n<li>\n<strong>Complete Fuel System, One Box:<\/strong> No compatibility guesswork. The fuel pump, regulator, and carburetor are matched for flow rate and pressure range \u2014 included adapters cover the most common fuel line sizes. <a href=\"https:\/\/www.ievilenergy.com\/collections\/carburetor\">See all carburetor options<\/a>.<\/li>\n<li>\n<strong>Electric Fuel Pump \u2014 Steady Flow at Any RPM:<\/strong> Unlike mechanical pumps that vary pressure with engine speed, the 12V gear pump delivers consistent 345\u2013370 LPH from idle to wide-open throttle. External mounting means no dropping the fuel tank.<\/li>\n<li>\n<strong>Pressure Regulator \u2014 Carburetor Protection:<\/strong> Electric pumps can output up to 14 PSI \u2014 far above what a carburetor float valve can handle. The adjustable regulator steps pressure down to a precise 4.5\u20139 PSI with an included gauge for real-time monitoring.<\/li>\n<li>\n<strong>500 CFM Carburetor \u2014 Street-Proven Performance:<\/strong> Modeled after the Holley Street Avenger fuel metering system, this 2-barrel carburetor delivers improved low-end torque and crisp throttle response. Electric choke for reliable cold starts, 100% wet-flow tested and ready to run. <a href=\"https:\/\/www.ievilenergy.com\/products\/500-cfm-2-barrel-street-carburetor\">View standalone carburetor<\/a>.<\/li>\n<li>\n<strong>Carbureted Systems Only \u2014 Not for EFI:<\/strong> This bundle is designed exclusively for low-pressure carbureted fuel systems. Every component \u2014 pump pressure, regulator range, carburetor fuel inlet \u2014 is calibrated for carburetor operation, not EFI.<\/li>\n<\/ul>\n<p><img decoding=\"async\" alt=\"\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/A_PC_-2_7980c1d1-48c7-4148-906f-b773d8afc616.webp?v=1783387905\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<h3>Why Upgrade the Entire Fuel System at Once?<\/h3>\n<p>A carburetor can only meter the fuel it receives. If the fuel pump is weak, pressure is unregulated, or lines are contaminated \u2014 the carburetor can&#8217;t compensate. Upgrading all three components together eliminates the variables: steady volume from the pump, locked-in pressure from the regulator, and precise metering from the carburetor. The result is an engine that starts reliably, idles smoothly, and accelerates without hesitation.<\/p>\n<h3>500 CFM \u2014 The Right Size for Street Builds<\/h3>\n<p>A 500 CFM 2-barrel carburetor is the sweet spot for street-driven performance. It delivers quicker low-end torque (where you actually drive on the street), simpler tuning with fewer circuits to adjust, and better fuel economy than larger 4-barrel options. It&#8217;s the right choice for small-block V8s, inline-6 performance builds, and anyone who drives their car more than they trailer it.<\/p>\n<p><img decoding=\"async\" alt=\"\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/A_PC_-5_c2f3311e-9424-4e04-be15-69af51aa4f9b.webp?v=1783387905\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<h3>Package Contents<\/h3>\n<p><strong>From the 500 CFM 2-Barrel Street Carburetor box:<\/strong><\/p>\n<ul>\n<li>1 \u00d7 500 CFM 2-Barrel Street Carburetor (Electric Choke, Polished Aluminum)<\/li>\n<\/ul>\n<p><strong>Carburetor Emissions Note:<\/strong> This carburetor is intended for use on uncontrolled (non-emissions controlled) vehicles: 1965 and older U.S. manufactured California certified vehicles; 1967 and older U.S. manufactured federally certified vehicles; 1967 and older foreign manufactured vehicles. Not for use on boats or speed changers.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/A_PC_-1_82f08d66-e12c-462f-b0e4-f96fbc28868c.webp?v=1783388113\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<p><strong>From the 12V Electric Fuel Pump box:<\/strong><\/p>\n<ul>\n<li>1 \u00d7 12V External Electric Fuel Pump (Aluminum, Gear-Type)<\/li>\n<li>2 \u00d7 3\/8 NPSF to 5\/16&#8243; Barb Adapters (Red)<\/li>\n<li>2 \u00d7 Insulated Terminals<\/li>\n<li>2 \u00d7 Mounting Nuts<\/li>\n<li>2 \u00d7 Mounting Washer<\/li>\n<\/ul>\n<p><strong>Fuel Pump Note:<\/strong> This is a low-pressure fuel pump for carbureted systems ONLY. It is NOT suitable for high-pressure EFI systems. A fuel pressure regulator is strongly recommended to prevent carburetor flooding.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/A_PC_-3_cf7af248-9e1f-42a3-9afd-39851201e126_1.webp?v=1783387905\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<p><strong>From the Adjustable Fuel Pressure Regulator (5\u201312 PSI) box:<\/strong><\/p>\n<ul>\n<li>1x Fuel Pressure Regulator<\/li>\n<li>1x Pressure Gauge (5-12 PSI)<\/li>\n<li>1x Mounting Bracket\n<\/li>\n<li>3x 6AN to 6AN ORB Fittings<\/li>\n<li>1x Allen Key + Sealant Tape<\/li>\n<li>All Required Screws (Self-tapping &amp; Cheese Head)<\/li>\n<\/ul>\n<p><strong>Regulator Note:<\/strong> This regulator is designed exclusively for low-pressure carburetor applications. It is NOT a bypass return-style regulator for EFI systems. CPE\/nylon braided fuel lines are NOT compatible with E85 fuel \u2014 use PTFE-lined hose for E85 applications.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/A_-3_c81c5dcc-0863-4d8f-bdce-89e1f1340ea2_1.webp?v=1783387905\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/p>\n<article>\n<h2>Why Choose the Carburetor Fuel System Upgrade Bundle?<\/h2>\n<ul>\n<li>\n<strong>Matched as a System, Not Just Sold as a Bundle:<\/strong> Each component is selected to work with the others \u2014 the fuel pump&#8217;s flow rate matches the regulator&#8217;s pressure range, and the carburetor&#8217;s fuel inlet is compatible with the regulator&#8217;s outlet size. No compatibility guesswork.<\/li>\n<li>\n<strong>Carburetor \u2014 Proven Performance at Half the Price:<\/strong> Modeled after the Holley Street Avenger metering system. 100% wet-flow tested. Ready to run out of the box. Electric choke, #74 main jets, 50cc accelerator pump. $299.99 vs. Holley&#8217;s $599.95.<\/li>\n<li>\n<strong>Fuel Pump \u2014 RPM-Independent Flow:<\/strong> Gear-type 12V electric pump delivers 345\u2013370 LPH whether you&#8217;re idling or at wide-open throttle. External mounting = no tank dropping. Aluminum body for -68\u00b0F to 194\u00b0F reliability.<\/li>\n<li>\n<strong>Regulator \u2014 6061-T6 Aluminum, Precisely Adjustable:<\/strong> 4.5\u20139 PSI adjustment range with included gauge. Anodized corrosion-resistant finish stands up to ethanol blends and road salt. Protects your carburetor from over-pressurization and flooding.<\/li>\n<li>\n<strong>Street-Tuned, Not Race-Only:<\/strong> This bundle is built for engines that see real street duty \u2014 crisp throttle response, smooth idle, easy cold starts, and fuel efficiency that doesn&#8217;t sacrifice performance.<\/li>\n<li>\n<strong>1-Year Warranty &amp; Free Technical Support:<\/strong> stands behind every product. Questions about fuel line routing, pressure settings, or throttle linkage? Our technical support team is here to help.<\/li>\n<\/ul>\n<p><img decoding=\"async\" data-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0590\/5403\/0984\/files\/evil_energy_more_products.png?v=1727234077\" alt=\" more products\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/article>\n","protected":false},"excerpt":{"rendered":"<p>Specifications Product Details Your carburetor is only  [&hellip;]<\/p>\n","protected":false},"featured_media":1232,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[84],"product_tag":[104,86,25,26,27],"class_list":["post-1149","product","type-product","status-publish","has-post-thumbnail","product_cat-fuel-pump-kits","product_tag-fuel-pressure-regulator-kits","product_tag-fuel-pressure-regulators-accessories","product_tag-fuel-pump-kits","product_tag-fuel-pumps-accessories","product_tag-fuel-system","first","instock","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product\/1149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/comments?post=1149"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/media\/1232"}],"wp:attachment":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/media?parent=1149"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=1149"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=1149"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=1149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}