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Just about everything in the valvetrain comes right back to allowing the camshaft to be as aggressive as possible. With flat tappet cams this can be difficult because the extra sliding friction between the cam lobe and the lifter tappet makes extra aggressive designs hard on parts. One way to help this is a treatment called “nitriding” which makes the cam both harder and more slippery. Engine builder Ken Troutman uses a custom grind developed with the help of Comp Cams and not only did he not want to share the cam specs—which we can understand—he didn’t even want pictures taken of the thing. So instead, this is an off-the-shelf nitrided cam from Comp. Eagle eyed readers may also notice it’s for a big block, but you get the idea.