BERKELEY — Chase Garbers completed 20 of 25 passes for 224 yards and three touchdowns in his second game as Cal’s starting quarterback, and the Golden Bears overcame a sluggish start and beat FCS-level Idaho State 45-23 on Saturday.

Marcel Dancy ran for 80 yards and scored his first career TD, while Jordan Duncan had a pair of touchdown catches as the Bears (3-0) rolled in their final game before a Pac-12 opener next week.

“We were bigger than they were and probably had more speed,” Cal coach Justin Wilcox said. “It’s going to get harder and harder as we move into Pac-12 play. We’ve just got so much we need to clean up ... it’s apparent.”

Ashtyn Davis scored on an 89-yard kickoff return, had a momentum-changing interception in the first quarter and added another key play on defense for Cal.

Tanner Guellar passed for 179 yards and a touchdown, Mitch Guellar caught six passes for 156 yards and a score and Ty Flanagan had an 11-yard TD run for Idaho State.

The Bengals (1-1) were 2 for 14 on third down.

Cal managed only 37 yards on its first three possessions and didn’t get going until Davis’ interception off Guellar late in the first quarter.

Dancy followed with a 5-yard touchdown run to cap a 40-yard drive.

Garbers found Duncan for a 28-yard touchdown on the Bears’ next possession after Duncan got past Idaho State cornerback Koby Lowe to make it 14-0.

Davis then turned the game in Cal’s favor for good.

Gueller connected with brother Mitch Guellar coming across the middle for a short gain but two Cal defenders ran into each other trying to make the tackle. As Mitch Guellar broke free and raced toward the end zone, Davis chased him down from behind and made the tackle at the 8 following a 63-yard gain.

“Whenever he’s on the field he has the ability to do whatever he can and cause havoc for an offense,” Garbers said of Davis. “His interception and then to hawk the guy like that and prevent a touchdown was definitely a big momentum swing for us.”

After Cal’s defense held the Bengals to a field goal, Davis took the ensuing kickoff back 89 yards for a touchdown. It’s the Bears’ first kickoff return for a touchdown since 2014.