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  3. HOLLEY EFI 300-921BK

HOLLEY EFI 300-921BK Front Ultra Base Coyote 090127473368

fits model: Ram. make: Ford.

300-921bk Holley Efi Ultra Lo-ram Base Ford Coyote Front Feed Black

( Brand: Holley Efi ), ( Manufacturer Part Number: 300-921BK ), ( Material: Aluminum ), ( Country/region Of Manufacture: Cn ), ( UPC: 090127473368 )

Review HOLLEY EFI Ultra Lo ram Base Ford Coyote Front Feed Black fits RAM

The Holley EFI 300-921BK Ultra LO-2V Base Fuel Injection System is a high-performance fuel injection solution designed specifically for Ford Coyote engines. This fuel injection system is part of Holley's Ultra series, which is known for its advanced technology and superior engineering.

The 300-921BK kit comes with a Holley 300 CFM EFI single-plane throttle body, which is engineered with a large bore design to provide optimal airflow and throttle response. The throttle body also features a built-in idle circuit for precise idle control.

At the heart of this fuel injection system is the Holley EFI 12-112 ECU. This electronic control unit is capable of managing up to 12 injectors and 12 sensors, making it an ideal choice for high-performance applications. The ECU comes with pre-loaded calibrations for various Ford Coyote engines, but it can also be easily customized using Holley's EFI Calibrator software.

This kit includes a Holley 12-inch wiring harness, which is designed to simplify the installation process. The wiring harness includes all the necessary connectors for the various sensors and actuators, making it easy to connect the different components of the fuel injection system.

The 300-921BK Ultra LO-2V Base Fuel Injection System comes with Holley's Ultra LO-2V fuel injectors. These injectors are capable of providing precise fuel delivery, even at high RPMs and under heavy load. They are also designed to be highly durable, with a robust construction that can withstand the demands of high-performance applications.

This kit also includes a Holley 12-inch water-cooled air temperature sensor, which allows the ECU to monitor the engine's air temperature and adjust the fuel mixture accordingly. It also comes with a Holley 12-inch MAP sensor, which measures the manifold absolute pressure and sends that data to the ECU to help determine the correct fuel mixture.

The Holley EFI 300-921BK Ultra LO-2V Base Fuel Injection System is a comprehensive fuel injection solution that is designed to provide precise fuel delivery and optimal engine performance for Ford Coyote engines. With its advanced technology, easy installation, and customizable calibrations, this fuel injection system is an excellent choice for any high-performance application.

The Holley EFI 300-921BK Ultra LS-Swap Base Kit for Ford Coyote engines is a popular choice for those looking to upgrade their fuel injection system. Here are some pros and cons to help you make an informed decision:

Pros:

1. Improved Fuel Delivery: Holley EFI systems offer precise fuel delivery, which can lead to improved engine performance and fuel efficiency.

2. Easy Installation: The kit comes with a wiring harness and mounting hardware, making installation relatively straightforward for most DIYers.

3. Flex Fuel Capable: The Holley EFI system is flex fuel capable, meaning it can run on both gasoline and E85 ethanol.

4. Adjustable Fuel Pressure: The fuel pressure regulator is adjustable, allowing you to fine-tune the fuel pressure to your specific engine setup.

5. Wide Compatibility: The kit is compatible with a wide range of Ford Coyote engines, making it a versatile choice for many applications.

Cons:

1. Cost: The Holley EFI system is more expensive than some other fuel injection options, which may be a deterrent for some buyers.

2. Complexity: While the installation process is relatively straightforward, the Holley EFI system is more complex than a traditional carburetor setup. This may require additional time and effort to learn how to tune and maintain the system.

3. Potential Compatibility Issues: While the kit is compatible with a wide range of Ford Coyote engines, there may be some compatibility issues with certain engine configurations or aftermarket components. It's important to double-check compatibility before making a purchase.

Conclusion:

The Holley EFI 300-921BK Ultra LS-Swap Base Kit for Ford Coyote engines offers several advantages, including improved fuel delivery, easy installation, and flex fuel capability. However, it also comes with some drawbacks, such as cost, complexity, and potential compatibility issues. Ultimately, the decision to purchase this kit depends on your specific needs and budget. If you're looking for precise fuel delivery and the ability to run on flex fuel, the Holley EFI system may be worth the investment. However, if you're on a tight budget or prefer a simpler fuel injection setup, there may be other options to consider.

Details:

As-cast aluminum construction: more durable for boosted applications, can be welded modifications. The oval inlet can accommodate up to a 150x66mm single throttle body and 93mm on the round variant. This manifold design is only offered in an oval throttle body configuration. 300-921BK ULTRA LO-RAM BASE, FORD COYOTE FRONT FEED BLACK: 569.95: Ultra Lo-Ram Intake Base - No Top Included.

Offered in both round and oval throttle body configurations, with. Offered in black and natural as-cast finish, both manifolds have a 9.20-inch runner length are designed to improve the mid high RPM power band. These kits include fuel rails for use with OEM type injectors and clips, mounting hardware, O-ring gaskets. Refined port design with streamlined injector boss for reduced turbulence without loss of flow area.

The Hi-Ram and Ultra Lo-Ram are designed to fit stock bolt pattern OE heads found on the 2011 2023 Ford 5.0 Coyotes related engine families, such as, Voodoo Predators. Finally, an affordable Coyote intake manifold that also performs. Buyer pays return shipping. Modular design: accessible runner entries for porting, allows accessories like inter coolers and notorious plates.

part #: 300921bk prices

  • $635.95-$686.63

specifications carbcoon:

  • for models: Ram
  • for makes: Ford
  • brand: Holley Efi
  • mpn: 300-921bk
  • material: Aluminum
  • country/region of manufacture: Cn
  • upc: 090127473368

returns carbcoon:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days

offer carbcoon:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 3
  • started: April 1, 2025

payments carbcoon:

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general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: New

seller carbcoon:

  • rating: 98.7%
  • # reviews: 9029
  • city: Bowling Green, Kentucky

shipping carbcoon:

  • service: UPS Ground
  • transit: 2-6 Days
  • type: Fixed
  • carrier: UPS
  • cost: $0.00
  • class: Standard
for models: ram, for makes: ford, country/region of manufacture: cn,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: aluminum, sku: 5415789877878652,

Holley Efi 300-921BK Is Similar To:

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5 offers $635.95–$686.63 USD
  • Offer #1: $645.56 price + $0.00 shipping estimate = $645.56* total. Ultra Lo-Ram Intake Base - No Top Included.FREE SHIPPING
  • Offer #2: $635.95 price + $0.00 shipping estimate = $635.95* total. Offered in black and natural as-cast finish, both manifolds have a 9.20-inch runner length and are designed to improve the mid to high RPM powerband Compatible with 2011-2023 Ford Coyote Engines.FREE SHIPPING
  • Offer #3: $686.63 price + $0.00 shipping estimate = $686.63* total. Holley Engine Intake Manifold - ULTRA LO-RAM BASE, Fits Ford COYOTE FRONT FEED B.FREE SHIPPING
  • Offer #4: $635.95 price + $0.00 shipping estimate = $635.95* total. Round inlets include standard mounting provisions for GT350, GT500, and LS 4-bolt throttle bodies. The oval inlet can accommodate up to a 150x66mm single throttle body and 93mm on the round variant.FREE SHIPPING
  • Offer #5: $664.24 price + $0.00 shipping estimate = $664.24* total. nThe aggressively designed Hi-Ram is constructed in a two-piece design to accommodate for air to water intercoolers and feature up to 20% more plenum volume versus Ultra Lo Rams. 2011-2023 GT throttle bodies can be used with the optional 717-18 adaptor.FREE SHIPPING

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