Roller tip rocker arm

[PeterRytter]

Are anyone in here using roller tip rocker arms ??

If there is i would like to hear some experiences: how much noise they kills, what brand you use, the price, where to be purchased, are they just as easy to mount as normal rocker arms and that kind of things.

Another question....a technical one :

What do you do to replace a valve seat ??

As far as im told I cannot just put for example a stainless valveseat in my head, i will have to have the seat build up (maybe they weld new material in there) and then grind it to original measures.

Do any of you have any experience in valve seats.....either replacement or rebuilding ??

[Panacea]

For stock type replacement go to Headhog.com Don Sulivan does a "poured in " method. Mike