ESPN College Football

LAS CRUCES, N.M. -- A big offensive performance. A shutout by the defense. A punt return for a touchdown.

Boise State is getting better. Even coach Chris Petersen agrees.

Kellen Moore threw for 246 yards and three touchdowns, and Boise State's defense allowed just 150 yards and had six sacks as the No. 11 Broncos beat New Mexico State 49-0 Saturday night.

Fast Facts

• Boise State remained undefeated, extending its win streak to eight games. This is their sixth winning streak of at least eight games in the last seven seasons.

• Boise State continued its domination of New Mexico State, improving to 9-0 in the matchup, outscoring the Aggies 107-0 in the last two games and scoring 40-plus points in eight of the nine games.

• Ian Johnson rushed for a score, his 52nd career rushing TD, and he's two touchdowns short of tying LaDainian Tomlinson for second on the WAC career rushing TD list.

• Kellen Moore threw three touchdown passes for the fourth time in his last six games.

-- ESPN research

"I think there's improvement. I definitely feel that," Petersen said. "We're still not there but we are getting better."

Boise State (8-0, 4-0 Western Athletic Conference) beat the Aggies 58-0 last season in Idaho and, after generating 495 total yards this time, simply kept things going a year later.

Ian Johnson and Jeremy Avery took turns ripping off long runs, each scoring a TD.

Kyle Wilson had a 71-yard punt return for a TD.

It was enough to convince Petersen that the Broncos are doing the right things. But what about Boise State's chances at breaking into the BCS bowls for the second time in three seasons?

On that point, Petersen remains unconvinced.

"We've got a long way to go," he said. "We've just got to get a lot better ourselves before we worry about any of that stuff. And we're getting better but this will be a tough road the next four weeks."

The injury-depleted Aggies (3-5, 1-3) were overmatched from the start, and coach Hal Mumme had no problem admitting it.

"We knew we couldn't handle those guys," he said. "They're too good. If we're at full speed and had everybody, we might have been able to make it a game. But they're a very talented group."

Moore, a redshirt freshman, put Boise State up 7-0 on a 14-yard throw to Jeremy Childs midway through the first period. But he said he'll learn more from an interception he threw on the next series.

"That was bad," Moore said. "It just comes down to fundamentals of being a quarterback. It comes down to stepping and throwing. That was just a bad ball on my part, 100 percent on me."

Wilson's interception set up Johnson's 11-yard TD burst, where he broke through three tacklers and dove into the end zone.

After a fumble by New Mexico State's Chris Williams, Avery added a 10-yard TD run. Moore threw a 23-yard TD pass to Austin Pettis and Boise State led 28-0 with 10 minutes left in the first half.

Moore played three quarters, completing 15 of 23 with one interception.

The Broncos weren't perfect. Julian Hawkins fumbled inside NMSU's 20 when the Broncos seemed ready to extend their 28-0 lead. There was a missed 41-yard field-goal attempt by Kyle Brotzman and a flurry of penalties -- 11 for 90 yards.

It didn't matter.

With New Mexico State's defense missing tackle after tackle and a revamped offensive line unable to generate a ground game or protect quarterback Chase Holbrook, it was easy for Boise State on both sides of the ball.

"The plan was to run the ball for two quarters at them," Mumme said. "We were going to shorten the game a bit and keep the heat off Chase, but the early turnovers took us out of it."

Holbrook was 12-of-20 for just 64 yards passing with one interception.

It turned comical in the third quarter, when the Aggies gave the ball up on downs by running a fake punt deep in their own territory. At least Donavan Roberts completed his pass to punter Kyle Hughes for a 9-yard gain.

Boise State took over at NMSU's 23 and two plays later Moore found Childs on a 29-yard pass for a 35-0 lead early in the second half.

"When the defense gives you the momentum, when they stop the other team and give you a short field, you've got shorter drives, quick bursts to get you on the board," Moore said.