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Description
Holley 550-871K Holley Sniper EFI Stealth 4150 Master Kit - Black FinishOverview: The Sniper Stealth 4150 EFI system from Holley features 4, 100LB HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self learning and ignition timing control, improving idle stability, drivability, and wide open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM
Overview:
The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. Part # 34-42 is required for a bolt-in installation.
Features:
- Bolt on 4150 Flange Carburetor Replacement
- Throttle body mounted ECU - no extra boxes to mount
- Supports up to 650hp with Four 100 Lb/Hr Injectors!
- All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
- Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
- Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
- Integrated ignition timing control
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
- Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
- Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Available in 3 finishes: Shiny, Black and coming soon, Gold
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley Sniper EFI |
|---|---|
| CFM | 870 |
| Emission Code | 3 |
| Finish | Black |
| Flange Style | 4150 |
| Fuel Pressure | 58.5 PSI |
| Height | 3.28" |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 3/4-16 Female O-Ring (AN 8) |
| MAP Sensor | 2Bar |
| Max Horsepower Rating | 650 Naturally Aspirated |
| Model | 4150 EFI Conversion Throttle Body |
| Product Type | Sniper Stealth EFI |
| Transmission | 700R4/200R4 |
| Transmission | Ford C4/C6 |
| Transmission | TH350 |
| Warning | California Proposition 65 |
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4.3 ★★★★★
Based on 49 reviews
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Product Reviews
★★★★★ 5
Use boxes
Format: Paperback
Loving this so far but no book will tell you how to import the projects use the boxes on the sides of your pc
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Very Good Godot Book
Format: Paperback
Great book overall!
Best suited for beginners as it literally begins by conceptually introducing variables, operators, etc. Still, it's very Godot. And nicely up-to-date as well, focusing on Godot 4.x and GDScript 2. Note though that the book only covers 2D, which is a shame. Hopefuly, the author is hard at work on a text thast starts where this one ends and moves on to explore 3D in Godot.
The illustrations are little muddy, but fortunately, Packt offers free downloads of (much crisper) PDFs with proof of purchase.
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Reviewed in the United States on May 25, 2024
★★★★★ 5
Book Review: "Learning GDScript with Godot 4
Format: Kindle, Format: Kindle
Learning GDScript with Godot 4" is an invaluable resource for both beginners and those looking to solidify their understanding of Godot's scripting language. This comprehensive guide takes you from the very basics to creating portfolio-worthy projects, making it a perfect starting point for aspiring game developers.
One of the book's standout features is its in-depth approach. It covers the fundamentals thoroughly, ensuring that readers build a strong foundation in GDScript. The inclusion of numerous code examples is particularly beneficial, providing practical insights into how to implement various features and mechanics within Godot 4.
Visual learners will appreciate the thoughtfully placed pictures throughout the book. While not overly abundant, these visuals effectively complement the text, helping to clarify complex concepts and enhance understanding.
Despite Godot's increasing support for C#, the focus on GDScript in this book is well-justified. GDScript is tightly integrated with Godot, making it an excellent choice for rapid development and learning. The book's code-centric approach ensures that readers gain hands-on experience, which is crucial for mastering any programming language.
Overall, "Learning GDScript with Godot 4" is an excellent resource for anyone looking to learn or deepen their knowledge of GDScript and Godot 4. Its thorough coverage, practical examples, and supportive visuals make it a must-have for your game development library. Whether you're a complete beginner or looking to fill in gaps in your knowledge, this book will guide you every step of the way.
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Reviewed in the United States on May 28, 2024
★★★★★ 5
An Excellent Introduction to Game Programming using GDScript/Godot
Format: Paperback
You’ll get up and going quickly with an overview of Godot and then jump straight into GDScript by learning about variables, control flow, collections, loops, object-oriented programming, and concepts like DRY, KISS, etc. Then the fun begins by building game mechanics while learning specifics of Godot such as the node/scene system, reusing scenes, cameras, collision detection, creating user interfaces, and more.
It also covers local multiplayer where you'll learn the basics of computer networking followed by learning about built-in multiplayer nodes provided by Godot. The final chapters cover some advanced programming patterns like event bus, object pooling, and state machines. By the end, you’ll have a fully playable single/local multiplayer game in the style of Vampire Survivors!
I thoroughly enjoyed my time with this book and highly recommend it for anyone who wants to get started on their journey to learn programming and even for experienced game programmers who want to learn Godot and GDScript.
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Reviewed in the United States on May 19, 2024
★★★★★ 4
Fine so far.
Format: Paperback
I am looking for some of the code from exercises, but can't find it in the project files, and they say don't copy it from the ebook...?
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Reviewed in the United States on November 17, 2024