Need to do some preventative maintenace, and everything I have read says replace/clean the flame trap. I assume this is part of the PCV system. I was looking at the car last night and there is a line that appears to run out of the block, or head (it was dark) and wraps around into the throttle body area. There also seemed to be something under the intake that I could not see very well. Just trying to get my bearings on this, and are the parts I need available at say Auto Zone?? Thanks!