I run kyb rear shocks with 1 inch overarched rear springs. If it has the power to spin the tire at the track, you don’t need anything fancy to get a sub 2 second 60 foot. I have run a 1.71 60’ with that rear suspension on f-70 14 redline tire. That being said I have installed qa1 R’s in the front and will be going to a double adjustable rear in the near future. Car is strip only kinda. Looking at qa1 double adjustable.