Thanks for all the responses. I'm not wild about the idea of drilling holes in an otherwise mint vintage Edelbrock intake , plus in looking for locations to physically make the hole it would not end up being very nice to look at.

I also agree that it would still not vent the valve cover area properly.

In looking at the engine I have an orange block, aluminum heads and intake , so I think a nice orange painted valve cover would look nice considering it will be an old school build with lakester headers.

Does anyone know where I can buy the old style steel valve cover with " chevrolet " stamped in and painted silver but still has a PCV hole in each cover ? Here's a link to a current auction for a set
http://cgi.ebay.com/ebaymotors/EARLY...QQcmdZViewItem

Could I make a hole somewhere in these for a PCV grommet ?