Your 4 wheel drive trans won't work at all anyway. It's a different animal. You will have to use a computer controlled Mopar overdrive out of a similar year car with your computer though, as it will be looking for the transmission signal.
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Forgive me, but I'm just a big dumb animal here...Am I understanding correctly that if I use this motor and computer as is to drop into my car, even if i choose to go the route of running a 727, that there will need to be some sort of transmission signal input?At that point, are there really any benifits of swapping to a magnum? EFI wouldn't then be an option if there is a trans signal requirement to the computer, and it would just be a carbed short block assy. Am I completly mis-understanding (which happens more often than I honestly care to admit)