Led by Carlos Delgado and Carlos Beltran, the Mets broke out of their offensive slumber in a big way Sunday night, powering four homers in a 12-5 Game 4 rout of the Cardinals at Busch Stadium that evened the National League Championship Series at two games apiece. Southpaw Oliver Perez, working 5 2/3 innings, was the beneficiary of a Mets eruption that featured five RBIs by Delgado, who homered for the third time in the series, and a pair of solo homers by Beltran, giving him three in the series. David Wright also homered for New York, which will try to regain the series lead on Monday night behind Tom Glavine. In a repeat of Game 1, won by Glavine at Shea Stadium, he'll oppose Jeff Weaver -- weather permitting.