<VV> "test" valve cover

[N2VZD at aol.com]

I use valve covers with 1/18 holes over the adjusters. made them years ago  
by setting a head over them to locate punch the holes ( rocker bolt holes 
in  head). I can drive the car with them if needed , without much if any oil 
getting  out. Most of my use is on newly rebuilt motors on the stand. Yes I 
have pictures  , if not on the website ( cnycorvair.com )
Regards, Tim  Colson