My problem is, I was once told that the emissions must match the year the donor injection setup was from...ie much the same way when preforming a later model engine swap. I dont believe this is the case, however I want to find all the relevant documentation that shows that I can perform the swap legally.
We've all been there when the bonnets been lifted or questioned mods on your car, unfortunately your word or knowledge doesn't mean s#%t unless you can document it
with evidence otherwise. A shiny injection setup in an older car is going to be questioned, and for your average roadside policeperson (excuse the generalization) they're going to start to reach for that big yellow sticker.
Call me whatever, but I like to be prepared. It has got me out of trouble in the past

(A roadside decibel reading that did not conform to ADR testing standards.)
Shaun.