Lots of good info already posted, but a 440 is going to make a ton of torque anyway. How bad do you want to destory the tires? You can make 500hp and 500+ torque faily easy w/o big cams, a ton of port work and so on. You are going to want to stay away from the MP 484 and 509 (old grinds) To beat your LS1 she could probably use a 340 cam...lol I'd go with something in the 230 @ .050 range and 500-510 lift. Then you'll want headers, a good dual plane intake, nice hot spark and while you could get away w/ a 750DP a 850DP would be better. using a cam w/ 500+ lift you're going to want to run a 2400 or so stall and at least 3.55's. Good luck.