CHICAGO (AP) -- The Cubs have the best record in the majors, so it's no surprise they're proving to be the top team in their own city.
Jim Edmonds, once with the St. Louis Cardinals and booed as loudly at Wrigley Field as some of the White Sox are now, hit two homers in a nine-run fourth inning Saturday, lifting the Cubs to an 11-7 victory.
"Whenever you get done tying me to the Cardinals, it'll be fine so I can start getting a little bit of Cubs' history in my background," Edmonds said. "It's a great win."
Everything Jose Contreras of the White Sox threw, the Cubs seemed to swing at and hit in their biggest inning of the season.
"It was a great inning, fun to be part of," said Edmonds, who struggled earlier this season before being released by the Padres in May and then signed by the Cubs.
The Cubs, who also hit back-to-back homers Friday, finished with 15 hits Saturday. They've now won 13 straight at Wrigley Field, where they are 31-8 this season.
The White Sox led 4-1 after two-run homers from Jermaine Dye and DeWayne Wise, before the Cubs jumped all over Contreras to win for a second straight day in a matchup of first-place teams.
"They put up a string of hits and it was like in the blink of an eye. Before you know it, they're up on us by a few runs," said Dye, who has homered in three straight games and has six in his last six games.
Edmonds, who'd missed the two previous games with a sore foot, and Fontenot homered on consecutive pitches from Contreras to get the fourth inning rolling and cut the lead to one.
After Ryan Theriot walked and Cubs starter Jason Marquis singled, the Cubs followed with three RBI singles from Kosuke Fukudome, Eric Patterson and Derrek Lee for a 6-4 lead. It was the third hit of the game for Patterson, who was just recalled from the minors Saturday.
Ramirez -- the hero of Friday's 4-3 victory with the game-tying and game-winning homers -- then dealt the White Sox a crushing blow, a three-run shot to left just over the wall to finish Contreras (6-6). Contreras' line wasn't pretty: 3 1/3 innings, 10 hits and nine earned runs.
"We took advantage of his mistakes. He left a lot of splitters up. And the guys made good swings," Ramirez said.
"I've never had an inning like that in my career," Contreras said through a translator.
Boone Logan relieved and Edmonds greeted him with another line drive into the left field bleachers to make it 10-4 and send the Cubs crowd into a full-fledged tizzy on a 70-degree day at Wrigley Field.
"He just had a good day. I'm not going to promote the guy who is hitting .218, " White Sox manager Ozzie Guillen said of Edmonds, who is actually hitting .238.
"I'd rather have him out there than [injured Alfonso] Soriano. He's a veteran player and he knows what he's doing ... Hopefully he doesn't have another game like that against us. Jim doesn't scare me. I'll pitch to him anytime."
Cubs manager Lou Piniella had just one regret after the outburst -- he pinch-hit for Fontenot when he came to bat for the second time, denying him a chance to also hit two homers in the same inning.
"You know, I didn't realize that," Piniella said. "I shouldn't have. I wouldn't have. I just didn't realize it. Those are those senior moments."
The outburst made it easy for Marquis (6-3) to win his fourth straight start and fifth straight decision. He gave up eight hits and five runs in seven innings and also collected two hits.
Wise, brought up from the minors on Tuesday, hit his first homer since Oct. 3, 2004 -- with the Braves at Wrigley Field -- and just the 10th of his career to give the White Sox a 4-1 lead.
Ramirez also had an RBI single in the first.
The White Sox got a run in the eighth when Cubs reliever Carlos Marmol walked the bases loaded and threw a wild pitch before retiring the side with Jim Thome in the on-deck circle. Dye singled in a run off Bob Howry in the ninth to slice it to 11-7 before Kerry Wood came on to strike out Nick Swisher with two runners on to get his 19th save in 23 tries.
The fourth inning was the Cubs' biggest since scoring 10 against the Cardinals on June 10, 2004 at Wrigley Field. ... Cubs ace Carlos Zambrano went on the DL Saturday with a minor shoulder strain and will miss two starts. ... Cubs OF Reed Johnson has been out four games and recently had an injection to calm back spasms.