hi guys been a long time reader of the webpag but it's my first time to post. i have a question about the d-port headers that IA/ponti-action makes for my car. has anybody ran them how do they fit? i'm getting ready to buy a set and i wanted to know what thickness the flanges are? any info. Dick Duclow looking at you for the flange thickness. anyway anybody have a set of them on a 78-81 lemans or such?
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