Originally Posted by Speed Phreak

14b on a stock LS should feel pretty good. With the right tuning should have the peppy boost responce of a factory boosted car. As far as the numbers go you may squeak 225~230whp out of it, around the 10~11psi range(stock obd-1+ map sensor limit). With gob's of torque...you'll definately be roasting tires.