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Part number: 550-400
Universal product
Product Details
Holley 550-400 Avenger EFI Throttle Body Fuel Injection System
Products specifications
Airflow Rate (cfm) 700 cfm
Calibration Module Included Yes
Distributor Included No
ECM Included Yes
Fuel Pressure Regulator Included Yes
Fuel Pump Included Yes
Fuel Rails Included No
IAC Motor Included Yes
IAT Sensor Included Yes
Injection Style Throttle body
Injector Size (lbs/hr) 65 lbs./hr.
Injectors Included Yes
Intake Manifold Included No
MAP Sensor Included Yes
Metering Style Speed density
Notes Designed for engines from 200-400 horsepower.
Oxygen Sensor Included Yes
Quantity Sold as a kit.
Throttle Body Finish Natural
Throttle Body Included Yes
Throttle Body Material Cast aluminum
Throttle Body Mounting Flange 4-barrel square bore
TPS Sensor Included Yes
Venturi Quantity 4
Wiring Harness Included Yes

Supply needed TPS signal.

  • Plug and play control of factory engines
  • 4 programmable outputs
  • 4 programmable inputs
  • Self tuning capabilities
  • Utilize a laptop or hand held tuner
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Found the part I need and very easy transaction.
Shopping experience went very well A+.
I sent my order for some comp cams lifters on Monday 1-16-2012 at around 8:30 and the Item was still shipped on the next day Tuesday.  This was awesome.  I received my product on 1-19-2012.  They have had the fastest turn around time that I have ever delt with.  I would highly recommend them for your auto parts needs.  They also had the cheapest price I could fine, including the shipping fee.
I like the fact that they sent me an e-mail that my item had shipped and gave the shipping number for tracking.
Very happy with my purchase and product from Autoplicity! Highly recommend.
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