I have been trying to pick up another set of carbs for my 80G but have missed most of what has shown up on eBay. If I try to fit a set from a 79 on what are my problems. I kow the floats are different, mains are bigger, and the needles are adjustable on the 79's, but is there a reason they may not run right on the 80. How about the 82 XJ? I don't know much about them.