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Message: [QUOTE="Zeb, post: 1521987, member: 30304"] I did not degree them. I just pressed the stock gear on, lined up the timing marks, and considered it done. The other thing I had issues with is we have taken 4 of the motors back apart, AND EVERY SINGLE ONE OF THEM has had exhaust valve marks on the pistons. 2 of those motors were freshly rebuilt 6.4’s that I didn’t assemble and thought possibly piston protrusion and /or valve recession was off on, but the othe 2 were stock, unmolested, 6.0 bottom ends that I had check piston protrusion and valve recession on. The 1st truck that we did one on is the one that we posted dyno numbers and fuel mileage on. I don’t think the cam really did anything to help either of those things that much, because looking back on it, that truck had other issues we addressed at the same time. That truck is also the only one that is still running that cam and the guy loves it. It was in here last week for cab mounts and it has about 65,000 miles on it since we put it in. They work pretty well with the stock vgt, but when we’ve gone to a bigger vgt, or non-vgt, they suck. I’ve talked to Chris several times about it, and he always says there is another problem, or to look at how flat the power curve is, or..... I really like Chris, and enjoy talking with him, but he missed it on these diesel cams. How much boost pressure are you at when you have 100psi drive pressure? I don’t think a cam is going to “fix” that. [/QUOTE]

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