i run the 150 landrums and love it, they are on the stiff side, so for a daily and street, the 100 would be fine, also think about what will be in the car, if you put a sound system in the back or your mother in law, you might want the 125, or stick with the 100 and put goooooood shocks on it, i personally like the pro stock shocks (gold ones) but you need boots to keep the dirt off the pistons, they are tough shock and will stiffen it with out the springs, another thing is one day you might want to get a newer style limited slip, that makes a huge difference also on handling, you know when your hammering into a turn and the rear starts to give and next it slides the opposite ? limited slip will let you push and when it gives, it stays side ways till you get traction and go straight, probably go pan hard, not a lot of room for a watts if you go 8 or 8.8 rear. landrum makes new springs for the front too any length you want and rate about 55 a piece