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Description
Holley Sniper EFI 550-849K 2300 Carb 2 Barrel Master Fuel Injection Kit PolishedOverview: 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).
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
- Patent Pending
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley Sniper EFI |
|---|---|
| CFM | 580 |
| Emission Code | 3 |
| Finish | Shiny |
| 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
4.7 ★★★★★
Based on 2250 reviews
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Product Reviews
★★★★★ 1
Do not trust sizing or measuents
Color: Black, Size: 32W x 30L
Sizing way off. Can barely fit on and no where close to buttoning. Same pant measurements in another pant bought at the same time no problem. Sizing and measurements off.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Nice
Size: 40W x 32L, Color: Beige
Very nice. Real quality. Would definitely purchase again.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
real leather, comfortable, size up 1/2 size to avoid the breaking in process, its beautifully made!
Size: 10.5, Color: Medium Natural Nubuck
They fit perfectly. They are the best pair of shoes My husband's ever wore! the smell of that new leather is incredible. It is real leather, not imitation leather. It's a little tight across the top portion of his foot right before his toes start, but I believe that can be stretched out, they just have to be broken in. they are so classy and snazzy. The front of the toe part is a little darker than the rest. But it Kind of blends in fades into the rest of the leather. It will scratch easily. So you have to be careful, it's real leather. It's soft but not like felt soft and its shiny. This is the kind of shoe you actually need The old school shoe Polish in a buffer cloth. I didn't think that we would like or he would like the white soul but it does not look bad like I thought it would be. It does not stand out. It blends right in perfectly with the shoe. Any of their color would have not matched. If you're on the fence about this nice dress, you don't be. this name Shoe actually lives up to its reputation. It was incredible and no, I'm not just saying that. if it sucked, I would say so. it's a great shoe in every way. It has a cushioned soft leather insole. It's a little thinner piece of velour feeling leather In the instep. It is such a great shoe definitely worth the purchase. The size does fit. He wears a 10 and a 1/2. That's what we got, and that fits perfectly. I think he could have gotten 11 and got away with it, so he wouldn't have to break the top portion in. But there's plenty of toe room, it's just where your outer edge of your foot an the bone, right before your big toe, so like I said, right across the widest portion of your foot needs to be stretched out broken in. once he breaks that in the shoe fits perfectly. so you can size up half a size you probably can get away with it, just fine God bless!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
High quality comfortable shoes from Rockport
Size: 13 Wide, Color: Grey Nubuck, Size: 13 Wide, Color: Grey Nubuck
I've been a fan of Rockport shoes since buying my first pair in the 1980's. I actually still have that pair and had them resoled once.
This shoe has the style and profile of a dress shoe but is finished in a nice smooth suede-like grey color. Typical of Rockport shoes, they are flexible and lightweight. The upper is genuine leather, something getting harder to find in reasonably priced quality shoes. That should make these more durable than artificial leather.
The insole is sculpted and soft with just a bit of memory foam padding with good arch support. They are removable and I assume replaceable.
The soles are flexible and grippy, and the heel is low and comfortable. I ordered my usual size, 13W and they fit well, just a tiny bit tight on the top where they lace if wearing thick socks until they stretch a bit. Due to the shape of the toe box they look a little long, but there is plenty of toe space.
These were very comfortable, true to size, well made and very nice looking shoes. I expect them to be durable and last a long time as all of my other Rockport shoes have in the past. These would look great with jeans or khaki's or even with more dressy clothing, they can be casual or dressy. Even though these are well made and genuine leather with Rockport's reputation for comfort and quality they cost less than many sneakers.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Rockport makes great shoe wear
Size: 11.5 Wide, Color: Dark Taupe Suede
I have owned Rockport shoes before and this pair lives up to the brand’s reputation for comfort. Right out of the box they felt broken in with very little adjustment period. The genuine leather upper looks nice and gives the shoe a more polished appearance than many casual options while still being comfortable enough for daily wear. The cushioning is one of the strongest features. The truTECH system does a good job absorbing impact and provides noticeable comfort during long days on my feet. The removable insoles add versatility and make it easy to customize the fit or use orthotics if needed. The quality appears very good with clean stitching and solid construction throughout. The leather feels durable and should age well with normal use. Ease of use is excellent since they slip on easily and require very little maintenance beyond occasional cleaning and conditioning. Size was accurate for me and the availability of different widths is a major advantage. Compatibility with different foot shapes is often overlooked but Rockport does a good job here. Value for money is strong considering the comfort quality and durability. Overall these are comfortable well-made shoes that work equally well for the office casual outings or everyday wear.
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Reviewed in the United States on June 4, 2026