What MPH did you run and how heavy is the car with you in it? You should be able to run 26 to 28 deg's timing on 94 octane and 12.5 to 12.8:1 AFR. Watch your plugs as you increase the timing. You may want to consider killing a bit of boost while in 1st gear... back your waste gate off and then add a vacumm solenoid to bleed some of the signal off that goes to the waste gate when not in 1st gear so you can get full boost, add a needle valve in series with the solenoid so you can control the bleed rate accurately. Some of the 700R4's have a pressure switchs on the valve body that closes when in 2,3&4th... you could wire this up to the solenoid so as soon as your in 2nd the solenoid opens...
Marc
51 GMC 4.2 turbo Can't solved today's problems using the same technology/thinking that created them
