I seem to remember, there was another guy who did a re-grind cam. It was in a shootout between the type4 and his. The other had higher peek numbers, but the type4 had much more area under curve, and much faster torque buildup. Which is MUCH better for everyday driving, or work of any sort. It was a writeup a while ago, but it did convince me, that if I do cam it, it's gunna be the type4 cam. Keep in mind this was written up by the other guy.