Re: 1985 Mariner V6 150 Carb Floats
Best you can do is buy a set of used carbs off'n eBay. The floats are the same in all of them, and if they are the later ones they will be the hard plastic floats that virtually never fail. The early ones had foam floats that alcohol sinks in about 20 minutes.
One aftermarket producer has listed a part number, but I don't think they ever made any.
So the floats out of WHxx carbs off a 135 would work fine.
hope it helps
John