"My time is running out," Walker said. "I am on a mission."
Walker, a junior from Americus, Ga., continues to recover from off-season surgery to his right throwing shoulder. The quarterback says his rehab is going well and he's around "95 percent."
Walker, who missed all of spring drills after starting FSU's Sugar Bowl matchup against Georgia, has been participating in the Seminole summer workouts that started last week.
"Right now my arm is real well," Walker said.
"I am throwing the ball better than I have in a long time. I am throwing deep balls, (my) timing is all right. You can still feel it's not quite there yet, but as far as throwing, I am feeling good. I have to get the endurance back. Other that, it's good. No pain. I am looking forward to this year."
Walker made his first collegiate start in the 26-13 defeat to the Bulldogs last January in place of suspend starter Chris Rix. He suffered three turnovers – two interceptions and a fumble – was sacked three times and finished 7-of-12 for 69 yards and one touchdown in just under three quarters. He had a long completion of just 20 yards.
Still, FSU coach Bobby Bowden said Walker would have gone into spring drills as the team's starter if the Seminoles has beaten Georgia. But Walker knew he had to deal with the shoulder pain that plagued him the entire season last year. Though he said his throwing arm was fine, he admitted he had to change his delivery. Walker had attempted just eight career passes entering the Sugar Bowl.
Walker is upbeat and fit heading into summer workouts.
"All last season I struggled with my shoulder," Walker said.
"Right now I am really looking forward to working hard this summer. My weight is dropping. I am getting back to my old size. I was like around 222. I am down to 218 right now. I want to get around 215 or so. I want to get down to that weight. I just feel better."
Though Walker enters the season as the backup behind Rix, he must also hold off redshirt freshman Wyatt Sexton, who turned in an impressive spring. Still, Walker says he feels comfortable in the Seminoles' offense and is motivated to press for more playing time.
"I feel like I have a good grasp of it (offense). I just have to get out there and play and visualize it," Walker said. "I feel comfortable with everything. I just have to go out and play.
"When I went back and look at (Sugar Bowl) video, I looked at every play I was in there. I saw my mistakes and the things that I did right. I thought I did real good in the game. The little things, the experience... that helped out. Those (mistakes) are things I will get corrected hopefully this season when I get a little more playing time."
Walker is eager to get started.
"Going into two-a-days, I am not even going to think about the depth chart, where I am at," Walker said. "All I know is I am going to bust my behind this year. My time is winding down here. I am just looking forward to playing a great amount of games instead of just filling in. I am ready to get going."