Dont get crazy with big duration, you mentioned you want tire frying torque, and lots of duration will kill your bottom end. The 276 mentioned or even something a little smaller will build more cylinder pressure instead of bleeding it off. If its the nasty idle you want, get one on a 108 LSA instead of 110 or 112. Try calling Howard's Cams at Competition Products...920-233-5228 and talk to them...I have bought several cams from them they have been more help than anyone else I have spoken with. John