All very good questions guys.
Valve spring interval will be very similar, But frankly we had very very smooth lobes before. These are more aggressive, so I still would want to change them about 15-20k out of habit. Operating conditions will dictate the time ultimately as usual.
They were designed around STOCK lifters and STOCK rockers. They are a little more aggressive than before but they arent so aggressive to create excessive jerk, loft or bounce on the closing.
On the specs, we give out the spec sheet with all the cams.
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