My question is; Is it necessary to measure valve to valve clearances when installing cams?

I currently have an H23 block w H22 head running in my car with stock cams but want to up grade to skunk2 stage2 cams.

If I do have to, is it possible to do it with out removing the head?
Also what degree should I place the cams after installing?

Thanks in advance

 

anyone?!

 

well if you upgrading cams you need springs to support it cuz stock springs only for stockc cams

 

Only if they are fairly large or you anticipate using cam gears to move them around a lot. You should call the Skunk2 tech people and ask them, but with stage 2 cams, I don't think that should be a significant issue.