this past weekend after a short bumby ride in parker and an hour later when i went to start her back up, the engine started fine then after roughly two sec. would starved out, this repeated several times.  I finally got it started but you could tell that the engine wanted to keep quiting with out giving her some gas it would of but it seemed to be ok so i trolled around for a bit to see what happens, then for a ride (about 15 min long). shut her down to jump in the water waited about 8 min tryed to start her up and had the same outcome.  Finally after getting back to the beach waited awhile but could not get it to start again. Any Ideas this happened so suddenly.  Boat was running great just had it in the water a week before and no signs of issues then.  I thought maybe the floats in the carbs might be stuck, if so could this cause this to happen, any ideas? Engine BBC with blower, Holly Carbs (engine is 3 yrs old)
Thanks

21'
engine was built by GS Marine in Corona.
here is the link
http://inlandempire.craigslist.org/boa/1174167384.html