This Sniper 2 EFI master kit pairs the self-tuning Sniper 2 throttle body with a return-style in-tank drop-in fuel module, built for classics running a traditional return-style fuel system. The optional Power Distribution Module (PDM) isolates the core EFI and ignition wiring into one location: slide the stripped wire ends under the positive-lock connector, tighten the set screw, and only battery power and a switched 12-volt source are required. A 3.5" full-color handheld display handles setup and tuning.
Key Features:
- All-new Sniper 2 design built on the proven Sniper EFI conversion platform
- Return-style drop-in fuel module built for in-tank installation on return-style fuel systems
- Power Distribution Module (PDM) simplifies wiring to essentially battery, ground, and a switched 12-volt source
- Cast-in fuel crossover from the primary to secondary fuel rail
- Next-generation ECU offers improved RF noise and interference resistance
- Redesigned injector connector for improved reliability
- Redesigned throttle shaft and plate geometry for a smoother throttle feel
- "Hidden Harness" wiring exits from the rear of the throttle body for a clean installation
- Next-generation mil-spec style M8 positive-lock connector for CAN1/CAN2
- Sniper 2 throttle bodies are individually serialized for improved customer service and warranty tracking
- Integrated transmission kick-down provisions for GM TH350/400, 200-4R/700R4, and Ford C4/C6
- User-friendly setup wizard builds a base tune from a few simple engine questions, no laptop required
- Compatible with the full Sniper EFI Ecosystem, including HyperSpark ignition and multiple display interfaces
Specifications:
- Flange Style: 4150
- CFM: 800
- Fuel System: Universal Drop-In Module (Return Style)
- Fuel Pump Flow Rating: 340 LPH
- Injector Size: 100 lb/hr @ 58.5 PSI (4 injectors)
- Fuel Pressure: 58.5 PSI
- MAP Sensor: 2 Bar
- Max Horsepower Rating: 650 HP naturally aspirated / 575 HP boosted
- Power Distribution Module: Yes
- Transmission Compatibility: All
- User Interface: 3.5" Handheld
- Finish: Polished
- Part Number: 550-510-3PR
Installs at home with common hand tools using Holley's installation manual and video support.
FAQ
What is a return-style drop-in fuel module?
It's an in-tank fuel module designed for vehicles running a traditional return-style fuel system, where excess fuel is routed back to the tank.
What does the PDM do?
The Power Distribution Module isolates the core EFI and ignition wiring into one location, reducing vehicle-side wiring to essentially battery power, ground, and a switched 12-volt source.
What size display comes with this kit?
A 3.5" full-color handheld display.
How much horsepower does this system support?
Up to 650 hp naturally aspirated or 575 hp with forced induction.
Do I need a laptop to tune this system?
No. The handheld's setup wizard builds a base tune from a few simple engine questions and the system self-tunes from there.
