Thinking about throwing on a mugen head headgasket to raise my comp a little. Should I adjust my timing or anything else? If any of you have it I would like your opinions on it please. I don't expect much but if I get that 3 angle valve job I'm going to do it.

 

no yo don't have to do anything like that. If you have VAFC you may want to tune in a little extra fuel.

Dude if you're just gonna get a 3 angle valve that is hardly gonna give you any noticeable gains..

 

My suggestion is : you have to tune the camgears to otain the proper power. 3 angle valve job won't do any better with your ITR head. You should spend that money to clean out the ports instead.

 

Also remember to compensate for cam timing: +2 degrees.