Thanks, the only thing I see with the 104201 cam is the 106 LSA. Would that cause tuning problems? I have 2 new cat's (true duals that will be getting changed back to a single exhaust due to a new change in smog rules that california is implementing). I just DD'd the 104201 and 104211 crane cams and compared them the the comp 8-464-8 cam. They are surprisingly similar, although the 201 doesn't hold torque as long or flat as the other 2. The crane cams have negative overlaps, the 211 is -23 degrees and the 201 is -5 what's with that, did I get something wrong when I entered the values?