Original sheet metal factory valve covers, which are clean. Using the Moroso hold-downs. I really don't want to have to permatex the valve cover to the cylinder head, not only because it is redneck, but also because it is so hard to get the permatex off later when replacing the gasket, and because you can't avoid getting some of the permatex into the pushrod holes when you scrape it off the head. I tried straightening the valve cover and so did my mechanic. He thought he got it straight, but it still leaks. Would you guys have any words of wisdom for me before I buy some alloy valve covers?