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I beleive the 82-83 wiring harnesses are the same, i do know that not all of them are the same, for example i bought a 6m-ge off someone that had an 85 intake and my car was an 84. The TPS is completely different and i had to end up using my 84 throttle body, the other problem is the vacuum lines...each year they were different it seems i haven't found 2 alike...haha so yes you could do it rather easily if the harnesses are the same but i'm not too sure...hope that helps..
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