You'd have to buy different definition files. I can tell you from experience that a VRAA6 (PMT1) binary will not work with a VRAA7 (PMT2/3) definition and vice-versa.
Since you're using PMT1 tunes and plan on emulation, you will be much better off just shipping your current PCM to Bill (since the truck doesn't run anyway), having him reflash it to PMT1, and email you the PMT1 emulation definition. If you'd like, I can make your current binary the required 32K size for the romulator.
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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