Holley Sniper Stealth 4150 - Shiny

$1,449.95

$1,449.95 ~~$1,449.95~~

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550-870

90127077610

Holley Sniper Stealth 4150 - Shiny

Holley Sniper Stealth 4150 - Shiny

Supports Up To 500HP - 3.5 in. Handheld Monitor - For Spreadbore Manifold - Return Fuel System

Overview
Are you tired of rebuilding the 50+ year old Rochester?????? Quadrajet???? (Q-Jet??????) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? The Sniper EFI Quadrajet?????? is here to help! The first bolt-on spreadbore electronic fuel injected throttle body system that does not require any additional adapters, sealing plates, or intake manifold swaps! The Sniper EFI Rochester Quadrajet?????? (Q-Jet) system retains the same great features as the 4150 Sniper EFI version such as; four 100lb/hr Injectors, built-in timing control, a 3.5" full-color touchscreen, and much more! This throttle body will support up to 500 horsepower naturally aspirated. In addition to all of these great tried and true features, the Sniper EFI Rochester Quadrajet?????? (Q-Jet) system will fit most stock air cleaners and offers multiple fuel inlet configurations that allow for a stock appearing installation! When it comes to converting to EFI, Sniper is the absolute best way to upgrade your car to fuel injection with just 4 simple connections required. Sniper is designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. After the simple installation it's time to let your Sniper begin the self-tuning process. Our user-friendly calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. You don't have to be a computer wiz or specialize in tuning to use a Sniper EFI system! Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. The Sniper EFI Master Kit includes a complete fuel system consisting of; 20ft of 3/8" vapor guard fuel hose, fuel pump, filters, and all necessary hardware to return fuel into your tank. Additionally, you're getting a 4.9 wideband oxygen sensor with a leak free oxygen sensor, oem style TPS/IAC, fuel pressure regulator, all Stainless Steel T-Bolt clamps and a Stainless Steel weldable flange. Sniper EFI is part of a complete ecosystem! Your new Sniper kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body Digital Dash to unlock the full potential of your build. Complete your fuel injection journey by checking out our full offer of ignition, fueling and accessories!

Features:

Bolt on 4150 Flange Carburetor Replacement
Self-tuning ECU means you don??????t have to be a computer/tuning wiz to have EFI!
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!
High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition RPM)
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.
An external fuel pressure regulator is required, set to a base pressure of 58.5 PSI, e.g. 12-886.
Integrated ignition timing control
The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
OEM Style TPS/IAC 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
vailable in 3 finishes: Shiny, Black and coming soon, Gold

Details:

CFM: 870
Finish: Shiny
Flange Style: 4150
Fuel Pressure: 58.5 PSI
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
Transmission: 700R4/200R4
Transmission: Ford C4/C6
Transmission: TH350

Links
Instruction Sheet
Instruction Sheet

Shipping

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Out of stock items are shipped as soon as they're available. Many items are built to order. Those items will have an average lead time on the product page.

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Returns

What items are returnable?（eligible for returns）

30-day return policy, which means you have 30 days after receiving your item to request a return.
In unused and resellable items, or defective items.
In the original packaging with all the tags intact.

What items and exceptions are non-refundable?

Digital Items like Tuning Credits for HP Tuners
Gift cards.
Discounted items (if applicable).

Damage, loss, or theft issues

If the purchased product is faulty, reach out to us within 7 days of the delivered date.
If the purchased product is loss, or theft, Please collect evidence and contact us immediately.

Refund solutions

Refund to original payment method.
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Refund policy

The Tuner Store accepts returns on new products within 30 days from the date of delivery. Items must be received in their original packaging material and in a new status. Used products or customer damaged products will not be accepted.

The Tuner Store reserves the right to apply a restocking fee to all returns. The purpose of this fee is to recover operational costs related to the purchase and the customer changing their mind.

When returns are the result of the manufacturer defect as determined by The Tuner Store, the return will not be subject to the above restocking fee.

How soon will I get my refund?

After your return has been processed, you will receive a refund notice from us and it will take an additional 1-3 business days for the refund to be returned to your original payment method. The refund to the store credit is immediate.
If more than 5 business days have passed since we’ve approved your return, please contact us at service@tunerstore.com.

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Some oversized, heavy, or specialty items may incur additional shipping charges based on your delivery location. If this applies to your order, our team will contact you after checkout with the updated cost. Orders will not ship until additional charges are confirmed and paid.