Gambits against Sicilian

how many gambits there are for White against Sicilian?

and which the best? so i can play it in 90min/40 moves games

The wing gambit with 2.b4 is a very sharp alternative,check out some Youtube vids on it. Then you also have the Morra Gambit with 2.d4 cd 3.c3!?

That's kind of hard to answer from the top of my head, since there are many different Sicilians. The immediate gambits are the Wing gambit (1.e4 c5 2.b4) and the Morra with the normal d4 and then c3. You can count poisoned pawn lines where black takes on b2, but these are hardly forced. Against the Pin Variation you can play the Koch Variation with 6.e5 and 7.Qg4 if you want to count that. Either way it leads to an interesting game. Theoretically, the Wing gambit and the Morra are not supposed to be that good, but they're hard to play against if you're unprepared. The other variations are main line theory. As far as I know, poisoned pawn lines are not that clear. That's all I know, hope it helps.  

wing gambit is fun.

The Morra gambit is probably the most respected one out there. Theoritically it is not very special but practically it can be a mighty weapon (unless your oponent knows what he is doing and declines, then it isnt very special).