How good are fel pro intake gaskets

[mycarsucks]

I just bought a JY 3100 with 182K miles on it. The engine has orange valve cover gaskets and I can see the metal intake gasket through the oil cap. It also says fel pro on the plenum gasket. Should I replace the gaskets or are the fel pro gaskets usually one and done? Car is pre dexcool if that helps

[Schurkey]

Any gasket can fail.  Fel-Pro tend to be among the best.  Aside from tearing it apart, the only way to know is to put the engine in service, and see what happens.