This kit is lacking when it comes to the quality and reliability, one would expect from Fel-Pro. The exhaust manifold gaskets are the wrong design for the application they were designed for. They also burn through in a matter of days. The breather gasket is for a two Bbl carb only and therefore requires one to locate a 4 Bbl gasket as well, if the engine is a 360. The gaskets are much more delicate than they used to be, so handle them very gently. They are the only game in town it seems, so with no other options, one must make do.