Huston, the Dick's Sporting Good Open winner this year, played the last 10 holes in 6 under in windy conditions for the best round of the day at Prestonwood Country Club.
"I was able to keep the ball in play and manage the wind," Huston said. "It was kind of hard, it was hard to get it close. It was definitely a lot harder today. The wind seemed to keep changing directions."
Blustering wind led to the highest single-round average in tournament history.
Price and Perry had 69s to match Huston at 9 under.
"You look at the guys who are up there, and obviously Kenny and John Huston are both longer hitters than I am, so I'm going to be playing first a lot (Sunday)," Price said. "My approach shots, I'm going to be playing first most of the day, I think."
Perry said he also struggled a bit with the wind.
"I got off to a great start, birdied three of the first four, so that kind of set the tone for my day," Perry said. "I hit a couple wrong clubs in the wind and hit a poor shot off the 10th tee that caused bogey. But all in all, I'm very happy with it. I'm excited -- in good shape for (Sunday)."
Perry is looking for his first win in two years and his first on the Champions Tour. In eight events on the over-50 tour this year, Perry has five top-10 finishes.