Quote:
Originally Posted by bullitt5897
Tturbo if you have anyone pull your upper manifold have them check the bolt threads for material.... I found that my vacuum leak was from two stripped holes on runner #4... Going to helicoil it and refasten the manifold back down while I'm at Z1 on Saturday.
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I'm glad u found it. I had specialty Z rip my car complelty apart and redo everything. This included taking apart the manifold and checking it for chunky uneven spots from poor casting etc. I didn't think about porting the intake when we see I there as it seemed a ok for me.