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 bold, classic dual-quad appearance that stands out on modern LS engines
  • Cathedral Port Compatibility — Precision-matched for LS1, LS2, LS6, and similar cathedral port heads, delivering optimized airflow and strong performance
  • Up to 750 HP Rating — Supports naturally aspirated, boosted, nitrous, or high-horsepower builds with external ECU for detailed, user-friendly tuning
  • Transmission Control Built-In — Integrated trans control for compatible automatic transmissions, reducing wiring complexity in swaps and upgrades
  • Full Plug-and-Play Package — Includes dual 102mm throttle bodies, wideband sensors, 3-bar MAP, fuel rails, complete wiring harness, 8 injectors, and all components for easy, high-impact installation
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Key Specs

MFG. Part #70086
Injection StyleMulti-port
Injector Size55 lb/hr
Max Horsepower Rating750
ECM IncludedYes
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FiTech 70086 Details

FiTech 70086: Dual Quad Retro Cast LS Port Injection Black w/ Trans Control FiTech's 70086 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 cast aluminum intake manifold in striking black finish, dual throttle bodies styled like classic dual-quad carbs, an external ECU with built-in transmission control, wideband O2 sensors, and full support for boost, nitrous, timing control, and advanced tuning. Capable of up to 750 HP, it's self-tuning with 8 injectors and 102mm throttle bodies-ideal for high-performance restomods, street rods, or boosted LS swaps that demand vintage hot rod looks with modern EFI precision and drivability.

Key Features

  • Retro Dual-Quad Black Styling - Cast aluminum manifold with black-finished dual throttle bodies for a bold, classic dual-quad appearance that stands out on modern LS engines
  • Cathedral Port Compatibility - Precision-matched for LS1, LS2, LS6, and similar cathedral port heads, delivering optimized airflow and strong performance
  • Up to 750 HP Rating - Supports naturally aspirated, boosted, nitrous, or high-horsepower builds with external ECU for detailed, user-friendly tuning
  • Transmission Control Built-In - Integrated trans control for compatible automatic transmissions, reducing wiring complexity in swaps and upgrades
  • Full Plug-and-Play Package - Includes dual 102mm throttle bodies, wideband sensors, 3-bar MAP, fuel rails, complete wiring harness, 8 injectors, and all components for easy, high-impact installation

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 70086 Specifications

KEY SPECS
MFG. Part #70086
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 FinishNatural
Fuel Rails IncludedYes
Wiring Harness IncludedYes
MAP Sensor IncludedYes
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