Will fuel components new in box age if not used for years?
 

So I have a fuel system kit that I bought years ago but haven't installed for whatever reasons. Rails, Braided Lines, FPR, etc. They've been sitting in their box for maybe 5 years, not exposed to any harmful environment. Is it good to use? Should I replace anything? Thanks

and no telling how long all that sat on a shelf before u got them. the parts will be just fine to use.