Bottle Pressure vs Performance???

[Blaster]

I was at the track last night and my bottle was at about 690psi. My two runs on the bottle were 12.24 @113.5mph w/a 1.799 60ft and 12.19 @114.5mph w/a 1.89 60ft. I did have to lift for a second on the 12.24 run to steady the car about 100 ft out. I'm running a 125 wet shot and my N/A runs that night were 12.74 @105.7mph w/a 1.73 60 ft (best ever!!!) and 12.89 @107.8mph w/a 1.89 60ft. Do you think its possible to get my car into the 11's with the nitrous if my bottle pressure was at 1000psi and I could nail a better 60ft time??? I do need to do some suspension upgrades because all I have now is hotckiss lowers and subframes. I'm disappointed with my gains when I'm using the juice because I thought I could drop at least a second!!!!