Thanks, guys. It seems like I could go with the 67cc's and a little bit thinner head gasket and come out ok? Providing that the pistons and gasket are what we assume them to be. If I were to step up to a larger cam in the spring such as 219* in. and 227* ex. @ .050 with .468 in. & .489 in. ex. lift
would this all work good together still? Just trying to keep from having to change too much when I try for future improvements. Thanks again- allways wanted to build my own instead of paying out the to have it done and am having a blast learning the technical side of it all!