GMPP BBC valve covers
Posted: Tue Oct 05, 2010 10:10 pm
I have a set of the GMPP valve covers for a big block chevy. I need to drill them for pcv and breather. They are both 3/4". There are no baffles in the valve covers. Can I just use baffled grommets? I don't really want oil mist all over the place. Thanks