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Re: Help with LS3 connections and PCV
Back side of the left valve cover is plugged, leave it plugged.
Same pic, the red cap is your vacuum source for power brakes. Either hook it up to a vacuum brake booster or leave it plugged.
Valley cover to throttle body is your actual dirty side pcv. This is where you install a catch can.
Right side valve cover front fitting is for fresh air into motor. Usually hooks up to air intake pipe so it is filtered and metered by the maf. If you run Holley (maf-less) you just need filtered air in (don't want to be sucking in dirt)
Other apparatus is a purge solenoid for gas tank evap system.
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