The fuel system needs upgraded with high pressure fuel lines and fittings and a high pressure EFI fuel pump, plus a return line.

The electrical is pretty simple since the EFI usually uses a seperate wiring harness that only requires a few connections to the Mustang II wiring harness. I believe I only had to connect 4 wires for my 2.3L Turbo.

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Originally posted by Maxwell_fax:
Hood clearence can be a bit of a problem too dependig on what intakes you use... I used fox T-Bird manifolds on my 289 in my '78 II... Had to modify for a different style of throttle body and eliminate the egr... Still pretty tight.... I'm currently working on making an upper intake that'll work with the truck lower intake that'll give me more room..

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As far as parts, I bought an entire running car with a bad tranny and took all the injection whatnot.. Wiring harness, intakes, throttle body, throttle linkage and brackets, sensors, ecm, distributor, etc.. Had to swap a few pins in the injector harness (Was a 5.0 HO with the Windsor firing order) I think I one thing I would change would be to use the mass airflow injection from either a 91-93 Tbird/Cougar or I think 90-93 Mustang with a 5.0 HO.. Seems to have better throttle resonse, and allows for engine modification. They also have the TFI ignition module mounted to a heat sink that can go in a nice cool place instead of right on the distributor..(at least on the T-Bird/Cougar)

For the fuel pump I first used the high pressure pump (the one on the frame rail) from an 86 F-150. Mounted it to the floor pan in front of the gas tank... This worked fine unless you ran it outta gas.. It was hell to get primed (and yes it was raining). So anywho I added a cheapo electric pump for a carburator in it's place, and put the high pressure pump under hood on the fender well.. Fixed it right up

For the fuel lines I ran 2 new ones front to back.. Took the sending unit out, driled a hole in it, and soldered a piece of line into it for a return and kept the original pickup.. I have an inline filter after the low pressure fuel pump..

The hardest thing was finding a place to put the ECM (AC doesn't let much extra under dash room) I finally monuted it above the plate on the driver's side that goes from the steering column to right above the kick panel..

It's kind of hard to explain how I did the intakes. It involved cutting, grinding, drilling, tapping, and JB weld.. It works but it doesn't flow all that well, and it is still VERY close to the hood.. I was considering a 5.0 Power Box as an upper intake replacement until I saw how big the ports are in the truck lower intake.. As of a few months ago there was no other upper intake available for the trucks.. But all it really needs to do it tie all the ports up to on location where you could mount a throttle body..

Right now I'm in process of injecting the 351c in my Gran Torino.. Found a 93 5.0 T-bird with a bad engine and alot of body damage.. For the intake I decided to be a cheap *** and make all the stuff myself.. Bought a used Edelbrock Performer intake and had a guy at the local machine shop weld injector bungs in it.. (same thing that Probe Industries does) I think I may buy the fuel rails and hardware from them though.. I already have a throttle body adapter made..