Ok - on my mutant EM, the gas cap is exposed. It has a somewhat crusty chrome gas cap. Since a normal Corvair hides its cap, nobody advertises fancy gas caps for them. Any idea what vehicle would have an exposed gas cap that would fit the 'Vair neck? Thanks Jay -- Jay Maechtlen SoCal '61 2-dr modified w/fiberglass skin, transverse 3.8 Buick V6 TH440T4 trans