That EGR pipe was a real PITA to get hooked up. The EGR tube is flexible and you should be able to bend it enough to get it lined up straight to stay flat and seal up properly. The stock cast iron manifolds have plenty of strength to keep it straight compared to headers which get welded manually and may be out of alignment. NAPA should have that gasket, did you check the website?
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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