Colorado Springs, CO -- (Sports Network) - Asher Clark ran for 136 yards and a pair of touchdowns to pace the Air Force Falcons in a 38-17 triumph of the Colorado State Rams in Mountain West Conference action at Falcon Stadium.

Tim Jefferson hit on 6-of-8 pass attempts for 171 yards and two touchdowns and he also had 22 rushing yards for Air Force (8-2, 5-1 MWC), which notched its fifth consecutive victory. Kyle Halderman caught two of those passes for 99 yards and a score in the win.

Gartrell Johnson headed the charge for CSU (4-5, 2-4) with 81 yards and a score on 19 carries. Billy Farris threw for 251 yards and a touchdown on 19- of-36 pass attempts, but he was picked off twice. Rashaun Greer was his main target with seven catches for 145 yards, while Dion Morton had five receptions for 42 yards and a score.

CSU kicked off the scoring with a one-yard touchdown plunge by Johnson just over five minutes into the game.

Air Force responded with a four-yard touchdown run by Kyle Lumpkin and a 41- yard scamper for a score by Clark for 14-7 lead after one period of play.

The Rams knotted the score with a four-yard scoring strike from Farris to Morton early in the second quarter.

The Falcons responded on their ensuing possession, as Halderman pulled in a 74-yard touchdown pass from Jefferson.

CSU made it a 21-17 game on a Jason Smith 23-yard field goal just before the break.

Clark scurried 45 yards for a score just over six minutes into the second half and Jefferson followed with a four-yard touchdown pass to Travis Dekker moments later, and Air Force carried a 35-17 lead to the final period.

Travis Dekker hit a 27-yard field goal early in the fourth quarter and Air Force would cruise tot he 38-17 victory.

The Falcons managed 455 yards of total offense, with 284 of those yards coming via the run.