Well I tore off my manifold heat stove today. I was getting an annoying vibration sound during acceleration around 2500 rpms from the passenger side engine bay. When i checked the stove today it was extremely loose and rusty. The little bolts holding it on broke off when i tried to remove them. Anyway, the buzz noise seems to be gone. Also while I was down there I noticed that the exhaust manifold is missing a nut.. dammit. Adam