{"product_id":"br-67255-carburetor-4150-model-650-cfm-square-bore-mechanical-secondary-electric-choke","title":"BR-67255 Carburetor 4150 Model 650 CFM Square Bore | Mechanical Secondary, Electric Choke","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe BR-67255 carburetor is a 4150-style replacement designed for engines that breathe through a 650 CFM four–barrel setup. With a square-bore flange, mechanical secondary throttle, and an electric choke, it provides a balanced, reliable upgrade path for compatible Holley Quick Fuel Brawler systems. This design focuses on consistent starts, steady fuel delivery, and straightforward installation, making it a thoughtful option for enthusiasts seeking a practical improvement over stock components.\u003c\/p\u003e\n\n\u003ch2\u003eKey Benefits at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDual inlet fuel bowls with sight glass windows let you monitor fuel levels at a glance, simplifying float adjustments.\u003c\/li\u003e\n  \u003cli\u003eElectric choke supports smoother cold-weather starts and helps transition to normal running more predictably.\u003c\/li\u003e\n  \u003cli\u003e650 CFM four-barrel configuration offers a balanced air\/fuel mix for a wide range of driving styles.\u003c\/li\u003e\n  \u003cli\u003ePrimary main jet #70 and secondary main jet #74 provide a tunable baseline for mixture control.\u003c\/li\u003e\n  \u003cli\u003e1-11\/16 inch throttle bore enhances throttle response and overall drivability.\u003c\/li\u003e\n  \u003cli\u003eDurable, lightweight die-cast aluminum construction resists heat and corrosion for lasting reliability.\u003c\/li\u003e\n  \u003cli\u003eAfter-sale support and a 12-month return policy add a layer of confidence when choosing a replacement part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications and Fit\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCFM: 650\u003c\/li\u003e\n  \u003cli\u003eType: 4-barrel with square-bore flange\u003c\/li\u003e\n  \u003cli\u003eChoke: Electric\u003c\/li\u003e\n  \u003cli\u003eJets: Primary #70, Secondary #74\u003c\/li\u003e\n  \u003cli\u003eThrottle bore: 1-11\/16 inches\u003c\/li\u003e\n  \u003cli\u003eMaterial: Die-cast aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReal-World Use Scenarios\u003c\/h2\u003e\n\u003cp\u003eWhether you’re upgrading a street-oriented ride, restoring a classic, or dialing in a weekend project, this carburetor aims to deliver predictable starts and smooth acceleration. The electric choke reduces cold-start cranking, while the dual sight glasses help you keep the float levels in check during tuning sessions. The square-bore flange makes for a straightforward fit on compatible intakes, supporting a cleaner installation and fewer surprises during assembly.\u003c\/p\u003e\n\n\u003ch2\u003eDurability, Support, and Peace of Mind\u003c\/h2\u003e\n\u003cp\u003eBuilt from lightweight die-cast aluminum, the BR-67255 unit is designed to withstand heat and exposure without sacrificing structural integrity. If questions arise, the after-sale support team is available, and you’re covered by a 12-month return policy to help ensure satisfaction after purchase.\u003c\/p\u003e\n\n\u003ch2\u003eUsage Tips and Getting Started\u003c\/h2\u003e\n\u003cp\u003eBefore installation, verify compatibility with your 4150-pattern intake and confirm the 650 CFM rating matches your engine’s needs. After installation, use the sight glasses to verify float levels, and consult your tuning resources to tailor the jet sizing to your specific fuel and ignition setup. This approach can help you explore a range of comfortable, drivable states without overpromising results.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the BR-67255 carburetor replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A 4150-style 650 CFM four-barrel with mechanical secondary and electric choke; designed to replace BR-67255 on compatible Holley Quick Fuel Brawler models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What features aid cold weather starting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Electric choke and dual sight glass fuel bowls aid reliable cold starts and easy float adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PlentyTorque","offers":[{"title":"Default Title","offer_id":42395761803349,"sku":"B0FC1QPWX7","price":220.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/br67255-carburetor-650-cfm-square-bore-flange.jpg?v=1775949447","url":"https:\/\/plentytorque.co.uk\/products\/br-67255-carburetor-4150-model-650-cfm-square-bore-mechanical-secondary-electric-choke","provider":"PlentyTorque","version":"1.0","type":"link"}