If you're using kit tires, likely you are exceeding the adhesion limits of the tire at that slip angle.
A couple things you could try: remove all spacers (if any) from the front rockers. Also, give it some toe out in the front.
Or you could also change ackerman. Instead of hooking your servo tie rods up to the outside holes of the front knuckles, run the inside holes.
One last thing you could try to increase front end traction is to run the front rocker tie rods on the inside most holes for the lower a-arms.
Both of the above will give you snappier turn in. If you want to reduce rear traction, try standing the rear shocks up more, or putting in a stiffer rear spring.