I've put a few motor mods on the car, now I'm trying to get the traction up to par. I've got Eibach lowering spring, which don't help, but I have BMR control arm relocation brackets. Problem is, when I'm in first gear and mash the throttle, the tach shoots up, but the car doesn't quickly eccelerate. This only happens sometimes, but more often than not. Other times the car will easily lay rubber and take off. What do you think it could be?