CHICAGO -- Paul Cavallini scored two of his team's four first-period goals Thursday night and the St. Louis Blues held on for a 6-4 win over Chicago, moving into a first-place tie with the Blackhawks. St. Louis and Chicago now each have 74 points to lead the Norris Division. The Blues improved to 33-25-8, while the Blackhawks dropped to 35-25-4. Cavallini added an assist and rookie Michel Mongeau had three assists for St. Louis. Rookie Jeremy Roenick scored a pair of goals with an assist for Chicago. The Blues scored three goals on their first six shots, making it a short night for Blackhawks goalie Alain Chevrier, who then was replaced by Jacques Cloutier. Cavallini scored first at 1:08, beating Chevrier with a one-timer from the right circle. Troy Murray answered for Chicago at 2:37, but Paul MacLean made it 2-1 eight seconds later, putting the Blues ahead for good. MacLean deflected in an Adam Oates backhander for his 25th goal, and Cavallini then notched his second of the game and seventh of the year on a two-on-one at 5:54. Cloutier replaced Chevrier and gave up Jeff Brown's goal on the power play with 2:20 left, giving the Blues a 4-1 lead through one period. Chicago's Steve Larmer and the Blues' Peter Zezel exchanged goals in the second period, before Roenick brought the Blackhawks back to life. Roenick banged a rebound past Vincent Riendeau for a power-play goal with 3:09 left in the second, then stuffed in another less than two minutes later, his 25th goal of the year, bringing Chicago within 5-4. The Blackhawks opened the final period with a power-play opportunity, but the Blues' Steve Tuttle silenced the crowd with a short-handed tally 1:20 in. Tuttle flipped in his own rebound, with Cavallini picking up an assist. The Blackhawks routed the Blues, 8-3, in their last meeting, Feb. 20 at St. Louis. The teams meet twice more this season. Regular season Final standings Norris Division GP W L T GF GA Pts Chicago Blackhawks 80 41 33 6 315 294 88 St. Louis Blues 80 37 34 9 295 279 83 Toronto Maple Leafs 80 38 38 4 337 358 80 Minnesota North Stars 80 36 40 4 284 291 76 Detroit Red Wings 80 28 38 14 288 323 70