Here are some example loadouts on how to fit T3 cruisers for wormholes:

Tengu: http://eve.battleclinic.com/loadout/36903-Tengu-Solo-wormhole-C3-C4.html

Legion: http://eve.battleclinic.com/loadout/25568-Legion-Legion-C3-Sleepers.html

Loki: http://eve.battleclinic.com/loadout/39903-Loki-Unprobable-0-0-L4-039-s.html

Keep in mind that if you want to find the wormhole, scan down the sites, and run the wormhole, all with the same ship, you will need a probe launcher (some of these fits don't have one).

Also a cloaking device can be a good idea if you find other people in the wormhole with you.