How do you change valve cover gasket on a 1990 Ford Tempo?

Felpro makes an excellent retrofit gasket for this application. Follow the provided instructions, but also use a thin coat of High Temperature RTV on both sides of the gasket prior to assembly to maximize sealing. Valve cover and head surface must be clean and grease free, and the cover must bolted down before the RTV sets to seal properly. Replacement is a simple bolt off/on operation and shouldn't take more than 30 minutes to do.