Puting another new engine in my K5 since I fried a bearing or two whens ome gas got into my oil. This one only has 2000 miles on it so it should be a nice strong motor for me. Want to put a slight lift cam in it before I throw it in and just want some opinions. Whats a good real torque building cam? Don't want a real lopey idle or bad mileage. I am liking the Competition Cams Xtreme Energy 4x4 cam with 250/258 degree duration. http://store.summitracing.com/partdetail.asp?part=13016 anyone have any opinions on this cam or another I should take a look at?