{"product_id":"holden-vn-308-304-efi-air-gap-dual-plane-intake-manifold-black","title":"Holden VN 308 304 EFI Air Gap Dual Plane Intake Manifold Black","description":"\u003cdiv\u003e\n\u003ch2\u003eHolden VN 308 304 EFI Air Gap Dual Plane Intake Manifold — Black Finish\u003c\/h2\u003e\n\u003cp\u003eMaximize carburetted engine performance with this Air Gap dual-plane intake manifold designed for Holden VN EFI-era V8s. The black finish delivers a rugged, factory-like appearance while promoting consistent air-fuel flow for enhanced power and throttle response from idle through mid-range to high RPM.\u003c\/p\u003e \u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAir Gap dual-plane design to promote steady air-fuel distribution and improved torque across the RPM range.\u003c\/li\u003e\n\u003cli\u003eSquare bore carburettor pad compatible with aftermarket square-bore carburettors, supporting both manual and electric choke options.\u003c\/li\u003e\n\u003cli\u003eNon-EGR configuration to keep the intake path clean and efficient.\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for Holden 304 V8 engines and late-model VN EFI engines; will not fit late VT engines with factory roller camshaft.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOverall height (carb pad to bottom of manifold): 150 mm (check bonnet clearance).\u003c\/li\u003e\n\u003cli\u003ePort size: 1.20\" x 2.05\"\u003c\/li\u003e\n\u003cli\u003eIntake gasket: 5REGIM-308VN\u003c\/li\u003e\n\u003cli\u003eCarburettor studs: 4 x 5\/16-18\"\u003c\/li\u003e\n\u003cli\u003eThrottle bracket mounting hole: 1 x 5\/16-18\"\u003c\/li\u003e\n\u003cli\u003eNPT ports: 2 x 3\/8\" NPT (includes 1 steel port plug); 3 x 1\/2\" NPT (includes 2 steel port plugs)\u003c\/li\u003e\n\u003cli\u003eRPM range: 1500 - 6500 RPM\u003c\/li\u003e\n\u003cli\u003eDesigned for idle to 5500 RPM range on Holden 304 V8 engines (per product description)\u003c\/li\u003e\n\u003cli\u003eCompatibility: Accepts late-model water necks, air conditioning, alternator, and HEI ignition systems in most VN EFI configurations\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFuel rails and fittings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDoes not work with factory OEM fuel rails; requires Aeroflow Fuel Rail Kit AF6999-4003.\u003c\/li\u003e\n\u003cli\u003eIncludes AF6999-4003 components: 2 x Fuel Rails (-8ORB); -8AN crossover braided line with two 90-degree non full-flow taper fittings; 3 x -8AN to -8ORB fittings; 1 x -8ORB hex port plug; 6 x mounting brackets; 6 x M6 socket cap screws (25 mm UHL); 6 x M6 hex screws (10 mm UHL); 4 x M6 nuts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eAdditional details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRunners should be port-matched to your cylinder heads for optimal performance.\u003c\/li\u003e\n\u003cli\u003eRequires 14 mm short (33.60 mm) fuel injectors (sold separately).\u003c\/li\u003e\n\u003cli\u003eDesigned for late-model Holden VN engine models EFI; for non-EFI applications, use A6010-4000.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47273789096106,"sku":"AF6210-4003","price":611.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_1_83291b8e-6387-4d32-a857-379181299073.webp?v=1753665329","url":"https:\/\/tgmperformance.com.au\/products\/holden-vn-308-304-efi-air-gap-dual-plane-intake-manifold-black","provider":"TGM Performance Parts","version":"1.0","type":"link"}