Which valve covers can I use to modify for crankcase ventilation?
A) Modify both valve covers with larger diameter ports and run them to catch can.
B) Add breather cap to oil cap for fresh air in
If more venitlation is needed, the add this:
http://www.aeicnc.com/gen-iv-chevrol...ley-cover.html
with the largest ports to get more ventilation via the valley cover.
After that - vacuum pump.
I was going to get some used valve covers to modify just in case I need to undo. Sorry for the long post, but wanted to get all the info. Just need to know which ones would work on my motor.
BTW - I have read all 77 threads on catch can/crankcase evac.


