Yeah, LSK's are pretty tough on parts, especially with the heavier OEM or aftermarket solid stem valves. They would work well on a low RPM dump truck or something, but not a real performance street engine.
Comp Cams has a pretty good selection of lobes, and even the Cam Motion stuff we've been working with is looking pretty good too. Our last 1LE heads/cam package picked up 96whp and 54ft-lbs of torque with a very small cam.
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