Originally Posted by phunk

Stock springs/height and rear alignment all zeroed out made Justin’s Z hook up insanely better than mine. Needs the higher center of gravity and softer suspension both to greatly aid weight transfer to the rear tires.

Also make sure your tires are fresh. Drag radials heat cycle out and lose grip long before the tread is worn out, especially on IRS cars that heat them up a lot more during highway driving, in my experience