It doesn't hurt anything, but it also doesn't deliver anything.
Lift isn't "free", and lifting further than what the heads can deliver will have a negative impact on power. Higher lift means the ramp of the cam has to be more agressive, among other things.
'nuff said; I know they sell a bunch of these uprated Vortecs and people change springs...but it delivers (less than) zero power. I'll stop bearing the dead horse and just <unsub>
