996 DME tune work in a 2.7?

[78F350]

I bought a neglected '04 base without a key. I don't know if I'll fix it or part it out, but I'd like to see if the engine runs okay. I can get a DME/Immobilizer/Fob set from a 3.6L 996 to install and test it. They are both compatible 7.8 DMEs, with the same part numbers, but I expect the 3.6 will have a different fuel map than the 2.7. Will it adapt enough to get the engine running? Any harm in trying?

The car came to Oklahoma a few years ago from around San Antonio. Anyone recognize it? That's a big badge decal.


Looks like it was cared for prior to the last owner.