valve covers that won't leak - ??

I just installed a cheap Felpro set. VS50184R. I was setting the valves and tired of the leaks on the black wrinkle covers. So put rtv on lip of valve cover put gaskets in and let the rtv setup before installing.
Thick.as hell.020 and very stiff.
Old ones were 5 yr old rubber felpro.
Im thinking rtv on the threads of bolts would also help stop seepage?

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