Upgrade your classic Full Size Jeep Wagoneer, Grand Wagoneer, Cherokee, J10, or J20 (1963–1991) to modern electronic fuel injection with the FiTech Go EFI 2-Barrel 400HP Classic Gold Master Kit (35591). This comprehensive EFI conversion is engineered specifically for AMC V8s with a factory 2-barrel intake, making it a true bolt-on solution for your FSJ.

The FiTech 35591 features a gold-finish cast aluminum throttle body that bolts directly to your Holley 2300-style 2-barrel manifold—no manifold swap or complicated adapters needed. The built-in ECU, 62 lb/hr injectors, and speed-density self-tuning system support up to 400 HP, providing smooth starts, stable idle, and crisp throttle response in any weather. The included Force Fuel Mini surge tank and connects to your mechanical or electric fuel pump, then supplies your EFI system with a 340-LPH pump. This setup eliminates the need for a feed or return line from the tank. A 10-micron fuel filter is provided in the kit with 5 feet of high pressure hose with AN fittings and clamps. 

A wideband O2 sensor ensures the system auto-tunes as you drive, while the 4.5” handheld touchscreen lets you set up and monitor the system in real time. The kit includes a complete harness, all required sensors (TPS, MAP, IAT, IAC), calibration module, high-pressure AN fuel lines, and a 10-micron filter—everything needed for a seamless installation.

Key Features:

• Direct bolt-on for AMC V8 engines with 2-barrel Holley 2300 flange (stock on most 1974–1991 FSJs)
• Supports up to 400 HP with 2 x 62 lb/hr injectors and 500 CFM throttle body
• Cast aluminum throttle body in a classic gold finish for authentic underhood style
• Self-learning speed density ECU—adapts fuel delivery automatically for daily driving
• Force Fuel Mini surge tank with 340 LPH internal fuel pump pump—retain your stock mechanical pump (to supply fuel to the surge tank. Inside the surge tank is the electric pump that then boosts the fuel to the high pressure needed for EFI and sends it to the throttle body.)
• Complete wiring harness, all sensors, calibration module, and 4.5” color touchscreen included
• Wideband O2 sensor and weld-in bung for real-time tuning and efficiency
• No need for tank modifications or a returnless system—just add a return line if your Jeep doesn’t already have one

Kit Includes:

• FiTech Go EFI 2-barrel throttle body with built-in ECU
• Force Fuel Mini surge tank with 340 LPH internal pump, fittings, lines, and 10-micron filter
• Wideband O2 sensor and bung
• TPS, IAC, MAP, and IAT sensors
• 4.5" handheld touchscreen controller
• Calibration module
• Complete wiring harness and installation hardware
• Detailed instructions

Ideal For:

• 1963–1991 Jeep Wagoneer, Grand Wagoneer, Cherokee, J10, J20 with AMC 304/360 V8 and factory 2-barrel intake
• Owners seeking modern drivability, cold start, and reliability with classic looks
• Bolt-on EFI performance with minimal modifications required

Installation Notes:

• Requires a fuel return line to the tank (use existing or add new)
• Air cleaner with 5-1/8” neck required (adapter or replacement may be needed)
• Minor throttle or kickdown linkage adjustment may be needed on some models