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Description
Holley 550-849 2300 Sniper EFI 2 Barrel ConversionOverview: Holley just brought EFI within range! Introducing Sniper EFI 2300! It's perfect for any vehicle that came standard with a 2300 Holley Flange like some Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Mustangs, Thunderbirds, Cougars and more. It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade your ride! It also easily adapts to a square flange or Q jet flange 4bbl intake
Overview:
Holley just brought EFI within range!
Introducing Sniper EFI 2300!
It's perfect for any vehicle that came standard with a 2300 Holley Flange like some Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Mustangs, Thunderbirds, Cougars and more. It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade your ride! It also easily adapts to a square flange or Q-jet flange 4bbl intake with a Mr. Gasket adapter P/N 1933 (4150 Square Flange) or 1929MRG (Spread Bore). Bolt-on replacement for popular classic Holley Carburetors such as the 0-4412 or 0-7448.
Put an end to cold start issues, hesitations, vapor lock, and flooding.
Upgrade to Sniper EFI and get the tactical accuracy of EFI today!
Features:
- Bolt on 2300 Flange Carburetor Replacement
- Supports up to 350HP with Two 100lb/hr Injectors
- Equipped with C4 / C6 Ford transmission kickdown lever as well as TH350, 400 and 700R4 provisions
- Accepts many common 5 1/8" OEM or aftermarket air cleaner assemblies
- Throttle body mounted ECU – no extra boxes to mount
- Integrated ignition timing control
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
- 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 realtime 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
- Sniper EFI Software free to download which allows for realtime tuning
- Printable throttle body flange template included
- Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
- A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
- Patent Pending
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley Sniper EFI |
|---|---|
| CFM | 580 |
| Coast Guard Approved | Yes |
| Emission Code | 3 |
| Finish | Shiny |
| Flange Size | 2300 |
| Flange Style | 2300 |
| Fuel Pressure | 58.5 PSI |
| Height | 3.28" |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 9/16-18 Female O-Ring (AN 6) |
| MAP Sensor | 2Bar |
| Max Horsepower Rating | 350 Naturally Aspirated |
| Product Type | Sniper 2BBL EFI Kits |
| Transmission | 700R4/200R4 |
| Transmission | Ford C4/C6 |
| Transmission | TH350 |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1462 reviews
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Product Reviews
★★★★★ 4
Pretty good product
Style: Single Arm, Size: 13"-34"
Assembly of the actual stand is easy, mounting to a monitor is not because of industrial design fluff. Gotta make the side you DON'T see look "sleek" and "smooth" and "organic" and "integrated" because...reasons. While this is on the manufacturer(s) of the monitor itself, what semi-modern monitor uses 100x100 VESA anyway?
The included long screws are too long. Even using the plastic spacers they'll bottom out with a 2mm gap; add washers and it's a lever arm and not solid or confidence-inspiring. I used a die grinder to remove the excess material closer to 75x75 and used the included short screws, perfect. So either include 25mm screws instead of the 30mm (but then the spacers would be too long), or just update the mount plate to 75x75 only, and throw 100x100 "compatibility" into the dustbin of history where absolutely no one will miss it.
Arm does move/adjust smoothly and is holding a 34" widescreen where I left it 2 days ago, so it IS a great product once it's properly fitted.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Great monitor arm stand.
Style: Single Arm, Size: 13"-34"
Very happy with this product. It's sturdy and easy to install. Love the tilt and swivel feature. The fittings for the stand are very well made. I suggest this for the quality and the price.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Easy to set up & works great
Style: Single Arm, Size: 13"-34"
It was super easy to get set up, came with all the hardware ypu need to install multiple ways. Holds my monitor securely and is still easy to move around. The adjustments are easy to access and have plenty of variation. Great purchase, such a reasonable price.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
I love it!!
Style: Dual Arms, Size: 17"-33"
I love this product. I do a lot of gaming and you tube watching. At the same time a lot. With this I keep my desktop clear so I can have my notebooks there and can still have both my monitors up and running. Another plus is if I decide to sit on the couch and play the console I can turn the screen a full 180 degrees so I can setup you tube and play games on the T.V. using the console.
The product itself feels to be of decent quality. It is not all plastic. The clamp is nice and strong.
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Reviewed in the United States on May 24, 2026
★★★★★ 3
Gets the job done. Just barely.
Style: Dual Arms, Size: 17"-33"
It holds up my monitor, but just barely, and without any confidence or finesse.
I had to move on from my previous arm mounts, the HUANUO. Those claimed to hold up to a 30 inch monitor and support 20 pounds. When I upgraded to a Samsung Odyssey Neo G8, it could no longer perform its duties. The gas shock was up to task, but the final adjustment piece that tilts it up or down was a hard down.
Queue this piece of hardware! 22 pounds is more than 20, and 32 is more than 30. This time I'm not even technically out of spec. The clamping force seems more than adequate to hold this to my desk. I will, at this point, basically walk you through how I feel about this mount, based on the order of installation instructions.
The way it goes together means that you will have to pull your desk out to maneuver the clamp in place before snugging it back up to the wall, a point in the HUANO's favor since it had a clever leveraging mechanism that lets you hang it with your desk still against the wall.
The way cords route through the arms close to the base means that you have to route them before you put the swivel arm on the base. This is because it has a screw at the front and back to secure the cover, and the angle/height are such that you cannot fit a screwdriver into the bottom one after you mount it. While not impossible to do with it installed, it would involve a right-angle screwdriver. They provide one of those, but the screwdriver bit of it is on the long shaft, and you would need it on the short shaft to get to that screw.
The way the swivel arms mount on the base is less than ideal as well. The arm slips onto a robust metal hub, and you tighten a screw that pushes against a plastic tab that makes it harder or easier to move. The location for this screw faces the wall. So you must turn the arm at an extreme angle to make it tighter or looser. Not a big deal, but noticeable.
Top arms go on smoothly, cable routing is simple and easy. No complaints about this section.
Mounting the monitor. The instructions are to mount the plate to the monitor, and then slide the plate onto the holder and secure it with the screw. I did this for neither of my monitors, although I tried it for my second. My big monitor went smoothly by mounting the bracket ahead of time and just forcing the arm down into position while my monitor rested on my desk. I tried this for my second bracket, but it was much harder to do with the monitor in a vertical orientation. So then I tried to do it the way the instructions wanted. I would have been able to do so, but my monitor has the mounting location set into the back of the monitor. This means that you can't mount it flush and then slide it on because you don't have clearance. So I tried to use the spacers. The spacers aren't spacious enough and the screws bottomed before snugging. While I'm not saying that solution wouldn't have technically worked, I instead reverted back to mounting the bracket first. This time I laid my monitor flat on the desk, reduced the tension in the shock greatly, and placed it into position that way.
At the end when it's complete and setup? It works. It will hold the G8. But just barely. The G8 uses an adapter to go from the monitor mounting points to VESA 100. This adapter sticks out quite a bit from the monitor, which means the weight is further away from the mounting point. Getting the tilt adjustment to hold involved a bigger allen wrench and cranking it further than it seems like it was meant to go. It groaned, but it held. It wants to dip if you mess with it, so I crank it again. Will it one day totally fail on me and point my monitor at my desk? Maybe. But it works on day 1, so that's a start.
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Reviewed in the United States on February 29, 2024
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