I have a set of Carbon Fiber Valve covers that fit Small Block Chevy for sale. They are 1/2 Inch taller than stock and Will Easily Clear Billet Rocker Arms. They are Twill Woven Carbon Fiber Material and give a High Tech Look on Your Pro Touring Car. I only had these on my car for about 300 miles till I decided to go with a different set. I'd recomend that you run a billet rail on the bottom to help seal better. You dont need it, but it would make them nicer. Price - $225 shipped. These are half the price of other Carbon Valve Covers. If interested please call 717-757-5841
Yeah they sealed up ok for me, but I am running a solid lift cam and I'm constantly taking them on and off so I can adjust my valves. So it's difficult to silicone them to really seal them up good over and over again. So I bought a pair that had an aluminum rib on the bottom to help with that. My new ones were $600.