460 carb w/ C-6 to 460 EFI w/ OD

[pcwb]

I need help from a expert -

I have a '70 4x4 Crewcab that is going to get a fuel injected 460 with the OD trans from a 1995 F-250 van. I think this combo will get better MPG and work well here in Colorado with the major elevation changes. I have done lots of motor swaps on these older (pre emission trucks), but I have not messed with the wire harness from a newer motor with EFI. I have all the wiring and computer, ETC..

How hard is it to sort out the wires to fit the old trucks panel? Do I use only the part of the harness that applys to the motor/trans? The van had the O/drive button on a stalk, can I just use a toggle switch? What will I need to do about the fuel pump? Can I do an external pump or does it need to be an in tank pump? I have dual tanks now, is there a way to use one pump for both tanks?
I know this is a major project, just hoping to get enough tips to keep it from being a nightmare. I am sure someone has blazed this trail before, so any help, hints or heads up would be appreciated.

Thank you in advance for any help,

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Paul

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[Conanski]

Your biggest headache will be sorting out the wiring. The main things you need are the engine/tranny wiring and computer, but there will be a few other bits needed as well. The computer requires a speed input and this can come from either a tranny mounted VSS or the rearend RABS sensor.. depends upon the year. I think the later truck used the RABS sensor but I think the E4OD can be modified to add a speed sensor if not so equipped. Your OD switch idea will work, and you can use a frame mounted high pressure booster pump and keep the dual tanks. There may be a few other issues but if you have the donor vehicle right there it shouldn't be anything you can't solve.