Air and Fuel› Fuel Injection Systems and Components - Electronic

Holley

Sniper EFI Self-Tuning HyperSpark Kit

$2,932.33

SKU: 550-510DK

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Holley 550-510DK is a Sniper EFI Self-Tuning HyperSpark Kit. This kit provides an EFI conversion for common 4-barrel (4150 flange) style carburetors.
Show original supplier description
The Holley 550-510DK is a Sniper EFI Self-Tuning HyperSpark Kit designed to provide a modern electronic fuel injection conversion for vehicles originally equipped with common 4-barrel carburetors featuring a 4150 flange. This kit simplifies the transition from carburetion to EFI, offering self-tuning capabilities that adjust fuel delivery based on engine parameters. It also integrates with Holley's HyperSpark ignition system for a complete performance upgrade. The system is engineered for ease of installation, aiming to be a direct replacement for many 4-barrel carburetors. This part is only legal for sale and use on Uncontrolled applications. Please note that the Holley 510-550-510DK does not fit a small block Mopar. Additionally, compatibility may be affected by specific camshaft types, excluding billet steel camshafts in some applications.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHolley
Part Number550-510DK
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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