I have a blown head gasket and am going to redo both just because. I am also going to do a few other things while I have it apart. I have never rebuilt torn that deep into the motor, but I am going to now. I intend to install a new cam, push rods, roller rockers, etc. The book I have for reference it from 1970. I am sure by now there are some better versions. Any recomendations?