[mr_mushroom]

o!
i might know this one.
too much gas getting in when you're cranking it.

mine did that for a few days once, until i fixed the choke.
actually, not fixed, removed in the process of diagnosis.
make sure that it is working properly, and that your fuel pressure is in the correct range. failing that, check the ignition control module.
i had that fail on two different camaros i once had, produced similar symptoms.

:edit:
damnit! i went back and reread it. you actually said no spark, but with fuel.
try that control module still, i guess.
:end edit:

i hope i win a star if i get it right.