Product Summary

Multi-port Injection Style, 55 lb/hr Injector Size

  • Retro Dual-Quad Black Styling — Cast aluminum manifold with black-finished dual throttle bodies for a timeless, eye-catching classic dual-quad appearance on modern LS engines
  • Cathedral Port Compatibility — Precision-matched for LS1, LS2, LS6, and similar cathedral port heads, optimizing airflow and engine performance
  • Up to 750 HP Capability — Handles naturally aspirated, boosted, or nitrous setups with external ECU for precise, user-tunable control
  • Advanced EFI Features — Includes wideband O2 sensors, 3-bar MAP sensor, fuel rails, full wiring harness, and provisions for forced induction/nitrous integration
  • Complete Plug-and-Play Kit — Comes with everything needed (throttle bodies, sensors, ECU, and components) for straightforward installation and standout under-hood presence
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Key Specs

MFG. Part #70085
Injection StyleMulti-port
Injector Size55 lb/hr
Max Horsepower Rating750
ECM IncludedYes
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FiTech 70085 Details

FiTech 70085: Dual Quad Retro Cast LS Port Injection Black FiTech's 70085 is a complete retro-style dual-quad port injection EFI system for LS engines with cathedral port heads (LS1/LS2/LS6 and similar). It features a unique cast aluminum intake manifold in black finish, dual throttle bodies mimicking classic dual-quad carburetor looks, an external ECU, wideband O2 sensors, and full support for boost, nitrous, and advanced tuning. Rated for up to 750 HP, it's perfect for standout restomods, street rods, or high-performance LS swaps that blend vintage hot rod aesthetics with modern EFI efficiency and drivability.

Key Features

  • Retro Dual-Quad Black Styling - Cast aluminum manifold with black-finished dual throttle bodies for a timeless, eye-catching classic dual-quad appearance on modern LS engines
  • Cathedral Port Compatibility - Precision-matched for LS1, LS2, LS6, and similar cathedral port heads, optimizing airflow and engine performance
  • Up to 750 HP Capability - Handles naturally aspirated, boosted, or nitrous setups with external ECU for precise, user-tunable control
  • Advanced EFI Features - Includes wideband O2 sensors, 3-bar MAP sensor, fuel rails, full wiring harness, and provisions for forced induction/nitrous integration
  • Complete Plug-and-Play Kit - Comes with everything needed (throttle bodies, sensors, ECU, and components) for straightforward installation and standout under-hood presence

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

FiTech 70085 Specifications

KEY SPECS
MFG. Part #70085
BrandFiTech
Injection StyleMulti-port
Injector Size55 lb/hr
Max Horsepower Rating750
ECM IncludedYes
GENERAL
Fuel Injection System TypeMulti-Point Injection (MPI)
Injectors IncludedYes
Intake Manifold IncludedYes
Intake MaterialAluminum
Intake FinishGold
Fuel Rails IncludedYes
Wiring Harness IncludedYes
MAP Sensor IncludedYes
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