[bbcmudtruck]

I had to replace my brand new pcv with the L shape that I got from oriellys. It was a mr gasket push in style. It was leaking around the seal when it had any sort of side presure on on it. I returned it and just got an exact replacement and it fit snug. A vacuum leak will create tuning nightmares. I go as far as trimming all excess vacuum hoses. That not only cleans up the engine bay, but also helps keep the excess hose up and off of heated objects that could burn a hole or out of the fans or belts! Make sure that all of your carb nipples are in good shape and not dry rotted or cracked also.