Symons, who was 34-of-46 for 505 yards, broke the conference mark of seven TDs set by A&M's Dustin Long last year in Tech's 48-47 overtime win in College Station.
Symons, who left the game with 11:48 remaining, had TD passes of 17, 19, 48, 13, 14, 15, 8 and 16 yards.
It's the third straight week Symons has broken a Big 12 record. Last week he passed for 661 yards and six TDs in a 49-45 victory at Mississippi, breaking the mark of 586 yards he set the week before in a 49-21 loss at NC State.
Wes Welker led the Red Raiders (4-1, 1-0 Big 12) in receiving with 114 yards on six catches and scored twice. He finished the game with 194 career receptions, breaking the school record of 189 set by Lloyd Hill.
Tech jumped to a 17-0 lead and never trailed in the game in which A&M (2-3, 0-1) allowed the most points in school history. The previous high was 57 points by Texas in 1977.
It was the third straight loss for the Aggies, who didn't score until Courtney Lewis' 3-yard TD run early in the second quarter.
Tech has won five straight games in Lubbock and seven of the last nine.
The margin of victory was the second-largest by Tech in the 62-game series. The highest was in 1954, when the Red Raiders went to College Station and beat Bear Bryant's 1954 team 41-9.
Symons fell short of the NCAA three-game record for passing yards. Houston's David Klingler threw for 1,798 yards in three consecutive games spanning the 1990-91 seasons. Symons fell short by 47 yards.
Less than four months removed from his transfer to Florida State, Everett Golson has been named the Seminoles' starting quarterback.
After hinting at it for more than a week, LSU coach Les Miles confirmed Monday that Brandon Harris will start at quarterback in Saturday's opener against McNeese State.
USC AD Pat Haden said he had "thoughtful conversations" with medical professionals and that "a lot of careful thought was given" before deciding on a course of action for coach Steve Sarkisian.
A final decision in Ohio State's quarterback derby won't be revealed until just before the season kicks off, but Urban Meyer isn't ruling out playing both his decorated candidates.
With less than a week to go before the season opener, No. 9 Georgia finally has a starting quarterback. Coach Mark Richt announced Monday that Greyson Lambert had won the starting job.
Sales of beer with Joe Paterno's name on it are so brisk that the company that makes it is gearing up for a second run after just a week on the shelves.