Please see the diagrams in the product images for other dimensions. A low profile distributor will be needed when using this manifold. We have a Sniper Hyperspark version #565-322 and a Holley EFI Dual Sync #565-211 available. Warning: Many Ford vehicle models were originally equipped with a heater core flow restrictor located at either the original heater hose fitting in the factory intake or inline in the inlet heater hose which protects the heater core from damage. If you are replacing the hoses between the engine and heater core or changing the factory fitting check to see if your application requires a flow restrictor. Failure to use the proper flow restrictor will likely result in a damaged or leaking heater core.
The EFI Hi-Ram manifold line has a new addition for the 8.2" SBF Ford application. The runner length and tapered cross section design will perform well for a wide range of engine combinations. The engineering team also redesigned the water crossover passage to allow room for distributor phasing. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more! Manifold is designed for a 8.2" deck height. • Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations • EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits. • Cast aluminum construction. ***EFI Base Manifold only-Manifold tops available seperately. *** A low profile distributor will be needed when using this manifold. We have a Sniper Hyperspark version #565-322 and a Holley EFI Dual Sync #565-211 available.
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EFI fuel rails are machined for -8AN o-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.
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Plenum Top Gasket Type – 3/32” Round O-ring Cord
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Manifold is designed for a 8.2" SBF deck height.
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EFI Base Manifold only.
| Basic Operating RPM Range | 1500-7000 RPM |
|---|---|
| Brand | Holley EFI |
| Category Filter | Intake Manifolds |
| Clearance Category | Intake Manifolds |
| Color | Natural |
| Construction | Cast |
| EGR Port | No |
| Emission Code | 3 |
| Engine | Ford Small Block |
| Finish | Satin |
| Flange Style | EFI |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Port Size | 2.00" x 1.190" |
| Product Type | Intake Manifold Base |
| Removable Runners | No |
| RPM Power Band | 1500-7000 |
| Sale Category | Air and Fuel Delivery |
| Single Or Dual Plane Type | Single Plane |
| Throttle Body Included | No |
| Warranty | Limited 90 Day |
| UPC | 090127062654 |
| Part Number | 300-274 |
ABOUT HOLLEY PERFORMANCE
For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.
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