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FiTech Go EFI 2x4 Dual-Quad 625 HP Self-Tuning Fuel Injection Systems Master Kit With Inline Fuel Pump, Cast Finish, 31061

FiTech Go EFI 2x4 Dual-Quad 625 HP Self-Tuning Fuel Injection Systems Master Kit With Inline Fuel Pump, Cast Finish, 31061

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FiTech Go EFI 2x4 Dual-Quad 625 HP Self-Tuning Fuel Injection Systems Master Kit With Inline Fuel Pump 31061
Part #: 44-395089-1 OEM Part #: 31061
$2,054.99 Kit
Ships Direct From Manufacture
1964 thru 1985
See applications below for exact details.
Shipping Note:
FREE GROUND SHIPPING within the 48 contiguous states

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  • Replaces your single 4 barrel V-8 carburetor with precise fuel injection technology
  • Fits factory and aftermarket (Edelbrock, Holley)  2x4 4-barrel V8 intake manifolds and air cleaner assemblies
  • NOTE: Does  NOT include intake manifold 
  • Eliminates hard starting, sputtering, cold start warmups,  interior fuel smell 
  • Instant starting and throttle response  (even after long term storage), improves mileage, superior all-climate drivability
  • Wet flow "swirl" fuel technology  increases performance over other designs
  • Self-tunes in minutes with no laptop tuning required
  • Voltage fuel pump control reduces fuel pump heat and extends life
  • Uses same throttle and transmission linkage as 4150 Holley carburetors
  • Idle compensates for a A/C (if equipped) so no A/C solenoid is required
  • GM style sensors can be replaced locally at most auto parts Stores
  • Integrated OBD-II style diagnostics, limp home mode allows you to drive should a sensor fail   
  • Cast Finish Throttle Bodies
  • Master Kit Includes Inline Fuel Pump for a ONE STOP SHOP installation


  • Quality Level:  High performance upgrade
  • Throttle Body Construction:  Die cast aluminum
  • Color: Bright Tumble polished
  • Metering Style:  Speed density
  • Throttle Body Mounting Flange:  4-barrel square bore, drilled for quadrajet as well
  • Quadrajet Fitment:  Drilled for Quadrajet, requires separate Quadrajet adapter plate Purchase - P/N 122276
  • Venturi Qty:  8
  • Injector Quantity:    8
  • Fuel Inlet Locations:    6
  • Timing Control:  Yes, does not require CDI box to control timing
  • Max Flywheel Horsepower:    Up to 625 
  • Supports Forced Induction & Nitrous:  No
  • Self Tuning:  Yes, in minutes...just answer a few questions on touch screen display
  • Laptop Tuning:  No
  • Fuel Pump / System Included:  No, see related items tab
  • What's In The Box:  Throttle bodies, fuel rails w/-06AN fuel inlet fittings, fuel injectors, ECM with calibration module, handheld touch screen controller w/windshield mount, plug-n-play wiring harness, Bosch 4.2 wide band 02 sensor and clamp on 02 bung kit, fuel pressure regulator, GM type 2.5 BAR MAP sensor, GM type TPS sensor, GM type IAC motor, GM type coolant temperature sensor, GM type adjustable control fan switch, gasket kit, step by step instructions 
  • Manufacturer Limited Warranty:  1-year all parts except ECM, lifetime on ECM only
  • Product Weight:    22 lbs.
  • Product Dimensions:  14 x 12 x 8
  • Approx. Installation Time:    6-8 hours, experienced mechanic times quoted, yours will take longer
  • Installation Difficulty:    Difficult, seek professional installation or for the experienced do-it-yourselfer
  • 50-State Emission Legal:  No

Dual Quad! EFI ! Nothing says Muscle like 2 big 4 BBL's on a V8 . FiTech EFI has made it simple with their Go EFI 2X4 625 HP self-tuning System. This kit is a bolt on for the most popular manifolds including the Edelbrock line of dual quad manifolds WITHOUT any adapters! They fit and look like they belong there because they were designed to fit from the start. Our normally aspirated kits are good thru 625 hp but our Go EFI 2X4 POWER ADDER kit can handle you guys with the bigger cubes and Roots Superchargers. One Throttle Body handles all of the brains while the second holds 4 additional injectors, and the IAC motor for idle stability. These can also be used in cross ram and tunnel ram configurations. No boost with these please!

Bolt on 2 of these tough looking throttle bodies and drive your car as the system dials itself into the perfect calibration for all of your driving and weather conditions. If you decide you want to tune for more power or economy, the FiTech Touch Screen controller allows quick and easy on the fly adjustments at your fingertips!

This Master Kit includes the inline fuel pump for a ALL IN ONE kit!


Make / Model Series Body Notes Year
FORD MUSTANG STANDARD 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982
FORD MUSTANG SHELBY GT-350 1965, 1966, 1967, 1968, 1969, 1970
FORD MUSTANG SHELBY GT-500 1967, 1968, 1969, 1970
FORD MUSTANG BOSS 429 1969, 1970
FORD MUSTANG BOSS 302 1969, 1970, 1971
FORD MUSTANG GRANDE 1970, 1971, 1972, 1973
FORD MUSTANG MACH I 1970, 1971, 1972, 1973
FORD MUSTANG BOSS 351 1971, 1972
FORD MUSTANG GHIA 1979, 1980, 1981, 1982
FORD MUSTANG GL 1982, 1983
FORD MUSTANG L 1982, 1983, 1984
FORD MUSTANG GT 1982, 1983, 1984, 1985
FORD MUSTANG LX 1984, 1985


Combined Cancer/Birth Defect
Prop 65 Warning

WARNING This product can expose you to chemicals including Cadmium which is known to the State of California to cause cancer on birth defects or other reproductive harm. for more information, visit