Posted March 3, 201312 yr comment_416732 I just won a mint-ish condition header from Ebay for my 240z, only downside is that it has holes for smog equipment. I wonder what size are those holes? My original manifold has been modified (those holes are weld shut) so i cant check on that. CheerZ Link to comment https://www.classiczcars.com/forums/topic/45904-blocking-msa-header-holes/ Share on other sites More sharing options...
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