The rich got richer in the NFL Sunday, when the five teams with none or one loss won again.

The San Francisco 49ers and New York Giants improved to 9-0, and the Chicago Bears, Miami Dolphins, and Buffalo Bills ran their records to 8-1.Joe Montana threw a touchdown pass and ran for a touchdown to lift the 49ers to a 24-6 victory over the Cowboys in Dallas. Jerry Rice caught 12 passes for 147 yards and one touchdown to help San Francisco to its 15th straight regular season road victory.

Montana completed 27 of 37 throws for 290 yards to help the 49ers extend their NFL record for road success despite a sluggish start that included a fumble on its first play of the night.

The Giants gained a measure of revenge with a 31-7 rout of the Rams at Anaheim, Calif. Phil Simms threw a touchdown pass and rookie Rodney Hampton, Ottis Anderson and Lewis Tillman added second-half rushing scores for New York.

The Rams defeated the Giants 19-13 in the playoffs last January and crushed them 31-10 last November at Anaheim Stadium.

"They embarrassed us last year but now it's pay-back '90 time," Giants linebacker Lawrence Taylor said. "We had a great effort. We're happy to be 9-0. You'd be a fool not to be."

The Bears, slighly behind the 49ers and Giants in the race for home field in the playoffs, dumped the Atlanta Falcons 30-24 in Chicago. Wendell Davis caught five passes for 105 yards and a touchdown and the Bears intercepted four passes to hand the Falcons their 15th straight road loss.

Miami and Buffalo kept pace atop the AFC East. The Dolphins jumped the New York Jets 17-3 at East Rutherford, N.J., and the Bills routed the Phoenix Cardinals 45-14 in the wind and snow of Buffalo.

Miami's defense, which shut out Phoenix last week, has not relinquished an offensive TD in three games or a rushing score in six games. For the second straight week, the Dolphins had five sacks - for 40 yards against Ken O'Brien. He was also intercepted twice for 52 yards.

The Dolphins scored on short runs by Tony Paige and Marc Logan for their sixth straight victory over an AFC East opponent.

"Their defense kept us to three points," Jets safety Erik McMillan said. "They came in here with the (NFL's) No. 1 defense and they're proving it as far as I was concerned. They made plays when they had to."

So did Bills quarterback Jim Kelly, who threw four TD passes to help Buffalo to its seventh straight. The Cardinals, 2-7, lost their fourth straight. They were beaten in Miami last week.

The Dolphins and Bills are expected to settle the division title Dec. 23 in Buffalo. Miami defeated the Bills at home in the second week of the season.

Washington plays at Philadelphia Monday night.