I hate to say this but I have been pretty happy with my $75 china made e bay fab covers. I bought them because I mounted coils to them for my new at the time EFI and Ignition. I wasn't sure what I wanted so I went cheap. They are flimsy but they fit nicely and have worked well for 6 almost 7 years now. I really prefer to buy American made but I can't shell out $400 for some fancy valve covers that won't look or work better than these.

Side note, I do run the super thick fel pro cork gasket with a steel liner. I think these gaskets will seal anything so these covers being less than flat isn't a problem.