K kingmeirl Member Feb 3, 2008 65 0 7 Sep 22, 2008 #1 Sep 22, 2008 #1 What is this port used for? The gasket I bought came with the option to block this port off. do I block it off or not? I blew threw the upper manifold where this port leads and it just dead-ends somewhere in the upper manifold. gt-40 heads and cobra upper.
What is this port used for? The gasket I bought came with the option to block this port off. do I block it off or not? I blew threw the upper manifold where this port leads and it just dead-ends somewhere in the upper manifold. gt-40 heads and cobra upper.
dcurtis 10 Year Member Jan 19, 2006 688 7 39 Sep 22, 2008 #2 Sep 22, 2008 #2 It's for your egr, if you are running egr don't block it.