Ping!
Well, it's irrelevant to our interests if they have F-16s to carry their nukes- they couldn't even reach Israel with an F-16, much less the US.
Incidentally, Israel has the longest-range F-16- the F-16i - bought specifically to give them the capability to bomb Iran. Sadly, they only have a dozen or so of them now (last I checked) though I believe we're sending about 2 a month to them.
Israel does have a few dozen F-15i aircraft, which can also reach Iran.