Valve Cover Gaskets Or Not?

[icanfixall]

I have a set of Felpro valve cover gaskets but wonder if I should use them or just use RTV like I did on the pan. Any ideas on this.....If I don't use them it wont leak any more than if I do use them. The ones on it when I tore it down lasted from 89 on the passenger bank and about 10 years on the drivers side bank....

 

[towcat]

I've remained leak-free on the valve cover area using the napa/victor cork gaskets. the part number is in the "parts bin" articles.