PX 4 link tuning

I am running 54 & 8.5" high right now, trying to get timing in a little faster to get 330 numbers down but its knocking the tire loose around 1.25 to 1.5 seconds

What can be done to give the car more the ability to take more power? Im running a liner, Hoosier 17/34.5/16 5.5psi air pressure weight bias is 51 on the nose.

Thanks,
Billy T