how to get around emissions?

so… in theory, if I wanted to swap a 4v 4.6L into it from a cobra or a lincoln… long as I use the same computer (from the car I’m swapping it into) and it says that everything is fine, and it’s an obd2 setup… I should be ok? I thought that the vin was stored in it? learn something new everyday.

besides, fuel injection is better IMO anyway