[Aussie Mike]

Gav is right. Weight transfer is your friend. As long as it's cornering OK just drive it. Suspension setup is a compromise which ever way you set it.

Big HP in a short wheelbase car will make it move around a bit. Think of your car as a lever with the pivot at the rear wheels under acceleration and at the front wheels under braking. The shorter wheelbase means the motor more leverage to lift the front and you have a lot less weight up there than a conventional car. You also have 50% or more of the cars weight on the back wheels.

You could try adding more rebound damping on the front and force the car to try and lift the weight of the wheels as well. Or just jam a tennis ball in your air intake. That should fix it.