valve cover tube on intake - use it or seal it
 

my upper charge pipe is a ebay cai - i'm wondering can i used the tube where a tube goes onto and connects to the valve cover for my boost gauge or maybe to the vac port on the bov or is that a bad idea?

Re: valve cover tube on intake - use it or seal it
 

block it off, your boost gauge will not read vaccum if its hooked up to your charge pipes

Re: valve cover tube on intake - use it or seal it
 

grind it off and weld it shut, or JB weld it shut. put an oil breather on the valve cover.

Re: valve cover tube on intake - use it or seal it
 

run a catch can to your pre-turbo pipe for crankcase ventilation

Re: valve cover tube on intake - use it or seal it
 

Or run a slashcut in your exhaust. Just don't expect to pass any emissions with the slash-cut.