jkas10
I would also sudjest going with the red first then white since your running a 19t. I would also sudjest trying a a red center spring the .20 spring should be fine. It also sound like your diff maybe to tight. How much rear pod drop do you have. your car might be tweaked to. Place it on a tweak board.
you might also want to try grey or white's with purple fronts. I hope this helps