Wells (2-0) benefited from the power surge, the first time the Cubs have hit four homers in a game this year and first since July 24, 2009, against the Cincinnati Reds.
"One through nine, or one through eight, we have guys who are banging," said Ryan Theriot, who matched a career high with five hits and also drove in three runs. "It makes it tough to pitch to when you're tough from one through eight."
It was refreshing to see the offense after the Cubs were stifled in New York earlier this week, getting outscored in three losses, 15-3.
"When you're cold, you're cold, and when you're hot, you're hot," Piniella said. "In the New York series, we showed signs of coming around, we just didn't get hits at opportune times. We had enough hits to score more runs [in New York]. We didn't get them in there, but we got them in here, so let's hope we continue to get 'em on and get 'em in."
Colvin, inserted into the lineup as part of Piniella's plan to keep the outfielders fresh, hit a two-run double in the first, a solo homer in the third and a single in the fourth. He lined a ball to a leaping Prince Fielder at first in the eighth. If Fielder doesn't make that play, did Colvin have a chance at a triple?
"I wouldn't have made it -- I hit it off the end of the bat," Colvin said. "It would've been a hustle double probably. It did cross my mind when I hit it."
Fukudome hit a two-run homer in the second, a double in the fourth and a single in the fifth. Was he thinking cycle?
"Not really," Fukudome said. "In this park, it's hard to hit a triple."
The Pittsburgh Pirates probably enjoyed the game. On Thursday, the Brewers capped a sweep in Pittsburgh with a 20-0 win. The Pirates called that game "embarrassing."
"This is embarrassing in a way," Milwaukee's Jim Edmonds said of Sunday's game. "We're just not playing well."
Wells (2-0) certainly feels right at home at Miller Park. He now has a 1.50 ERA (three earned runs in 18 innings) at what's become Wrigleyville north. The right-hander lost his bid for a shutout in the fourth, when Fielder singled and scored two batters later on Gregg Zaun's groundout. The right-hander said he was inspired by Ted Lilly's six shutout innings Saturday night in his first start of the season. Wells called Lilly's delay a "little vacation," which, in reality, was the lefty's need to rehab his shoulder.
"We have a nice little rivalry going, between me, [Lilly], [Ryan Dempster] and [Carlos] Silva," Wells said. "We're all throwing the ball well, so when the team swings the bats, I like our chances."
For the game, Wells struck out six over seven innings and also chipped in at the plate when he doubled in the seventh and scored on Theriot's single. It was Wells' fourth career double and one of the season-high 18 hits by the Cubs.
Theriot, who went 14-for-28 on the road trip, now has five straight multihit games.
"I'm trying to talk Lou into letting me hit fourth," Theriot said. "I'd like to hit first. It gives me more at-bats and I can do more things. Wherever I hit, it's the same thing -- try to get on base and score more runs."
Chicago loaded the bases in the first against Dave Bush (1-1), as Theriot singled, Fukudome walked and Lee was safe on second baseman Rickie Weeks' error. One out later, Colvin smacked a double down the right-field line and Alfonso Soriano followed with a sacrifice fly to make it 3-0. Bush left after serving up nine runs (seven earned) over 3 2/3 innings.
Soto led off the fourth with his second homer of the season, and two outs later, Fukudome doubled and Lee followed with career home run No. 297 and No. 4 this year. Lee's shot appeared to travel the farthest of the four, landing in the Harley-Davidson seats in left-center.
"I thought he was going to win a Harley," Theriot said. "I was trying to talk him into giving it to me if he did."
The Cubs now head home. Piniella hopes they bring the hot bats.
"Let's hope we build from this with a good homestand and go from there," he said.