The Bulls haven't been in a final since narrowly falling short to Cootamundra in the 2006 decider.

They will have a good opportunity playing at Jarrah Park against a team coming off a 42-point loss.

The Bulls have momentum after a stirring come from behind win over Ag College, and its something Graham wants to keep.

"It's definitely an advantage to have a bit of momentum coming into the game and I think its important to start well to maintain that momentum," he said.

With both first and second grades playing in preliminary finals, tomorrow will be a big day for the Bulls.

Graham hasn't been able to settle on a team just yet and doesn't expect to know who will play until game day.

Fullback Justin Shortis won't play after injuring his hamstring in the warm-up on Saturday.

Tumut scored a 17-point win over the Tuskers when the two teams met in round one, but Graham is expecting a different challenge in the preliminary final.

"With the results after the split they've come a long way from the start of the season," Graham said.

"We are definitely expecting them to put up a good challenge."

Temora number eight Niko Degei is one player the Bulls will be out to contain, while Graham is also looking to limit the Tuskers' broken play opportunities.