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2010 Catalog

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Summer 2009
Restomod Magazine

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Project EFI GT
Mustangs Plus gives you the lowdown on installing Electronic Fuel Injection in an Early Mustang
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The other concern is that the idle of the 289 engine with the EFI is not as smooth as the 5.0 engine. We believe the reason for this is that the camshaft grind is different for the EFI engines and the computer still thinks that this is the engine that's being operated. As soon as you are underway, the engine smooths right out and runs great! It produces a ton more torque and winds up a lot quicker than with the stock intake and carburetor. Gas mileage is also up about 10% to 15%.

The really important part of this project is the wiring harness that Ron Morris Jr. built for the car. As you can see by the pictures, all of the wires come out exactly where they're supposed to, all of the connections are factory plug ins, and the only wire you have to cut is the ignition wire which goes to the solenoid. There are no other wires to connect up. All of the power comes and goes from the solenoid. And it will work with any engine, whether you are just installing the EFI as we did here, or a complete engine and transmission combo from a late model car.

The uncovered wire loom is checked for fit. The Ford Motorsport wiring harness must be modified to fit correctly.The uncovered wire loom is checked for fit. The Ford Motorsport wiring harness must be modified to fit correctly.
We used an accelerator pedal out of a 1970 Mustang. It's ready to accept the late model throttle cable which is used.We used an accelerator pedal out of a 1970 Mustang. It's ready to accept the late model throttle cable which is used.
The oxygen sensors are installed in the exhaust pipes close to the cast iron exhaust manifolds. One on each side.The oxygen sensors are installed in the exhaust pipes close to the cast iron exhaust manifolds. One on each side.
The solenoid is moved down. The only wires to hook up go to it. The only wire you have to splice in is the ignition wire. Period!The solenoid is moved down. The only wires to hook up go to it. The only wire you have to splice in is the ignition wire. Period!
The coil is mounted to the drivers side shock tower and the wiring harness loops around to it.The coil is mounted to the drivers side shock tower and the wiring harness loops around to it.

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