I am in the process of pulling my cylinder heads because of a blown head gasket. I am wondering if I should have my heads shaved?? I have a friend that will do it for my favorite price...free!! If I have them shaved how much should I have him take off?? I was looking at the Felpro head gaskets and I noticed they had one that was .010 bigger. Is this how much I should take off?? AS a side note why is the .010 head gasket $10 cheaper then the standard gasket??