[WSSix]

400-450rwhp and a broad torque curve in a car the weight of a Chevelle will be plenty of power to enjoy. That's well within the reach of a 6.0 LS. The key will be to build a broad power band so that the car is enjoyable to drive in all the various conditions it will see as a street car.

I've built a number of different cars with different engine configurations. The most fun was from the engines making low 400s at the wheels with broad power bands. The two cars that made over 500 rwhp were too much. Basically, the fun was over before you knew it had begun.

For the record, my TA makes 400ish rwhp and tq through a T56 and 3.90 gears. With good tires, though not 200 tread wear, I can still shred the tires from a 35mph roll. That's plenty of power for me.