Re: which carb kit?
If you go to mercruiserparts.com you can use your model number to get a parts list and diagram, this will also give you the oem carb kit number, then you can look to see if iboats has one, if not you should be able to order them from a local merc dealer.
One thing, some kits (like the one I just put on mine) come with small brass caps/plugs. Look at your carb to see them, I recommend not even messing with them, Leave the old ones in, if you don't get them out the first try, they push all the way in and are next to impossible to get out, I know this from experience.
