I bought a Summit rebuild kit some time ago. Won't be using many of the gaskets-who uses cork, anyway???? Here is my question, the kit included Felpro head gaskets #8548PT2, and intake gaskets #90361. At the time, I didn't forsee getting new heads, but I recently purchased some aluminum Y303 heads. Can I still use the supplied gaskets or not? I read somewhere that aluminum heads need graphite gaskets to avoid brinelling...