hi! i recently had to remove my passenger side head because of a spark plug braking of (long story) anyways, i am at the point where i need to reinstall my factory crane cams 1.7 roller rockers (pedestal) and i am wondering is there a specific way of doing this? i have seen people just hand tighten them down is that correct? and I have also seen people turn the motor and tighten them down in a series, I did not remove my driver side head so I didn't touch those roller rockers do they have to be redone???